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Finding the Fourth Proportional to 57,319,487,999.40, 85,979,231,999.10 and 57,319,487,999.40

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Solution

The fourth proportional to 57,319,487,999.40, 85,979,231,999.10 and 57,319,487,999.40 is: 85,979,231,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,319,487,999.40 : 85,979,231,999.10 = 57,319,487,999.40 : x
  2. Step 2: Convert to fraction form
    57,319,487,999.40/85,979,231,999.10 = 57,319,487,999.40/x
  3. Step 3: Cross multiply
    57,319,487,999.40x = 85,979,231,999.10 × 57,319,487,999.40
  4. Step 4: Simplify right side
    57,319,487,999.40x = 4,928,285,556,770,040,971,264
  5. Step 5: Solve for x
    x = 4,928,285,556,770,040,971,264/57,319,487,999.40
  6. Step 6: Final answer
    x = 85,979,231,999.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.