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Finding the Fourth Proportional to 56,168,999.10, 78,863,346.90 and 56,168,999.10

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Solution

The fourth proportional to 56,168,999.10, 78,863,346.90 and 56,168,999.10 is: 78,863,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,168,999.10 : 78,863,346.90 = 56,168,999.10 : x
  2. Step 2: Convert to fraction form
    56,168,999.10/78,863,346.90 = 56,168,999.10/x
  3. Step 3: Cross multiply
    56,168,999.10x = 78,863,346.90 × 56,168,999.10
  4. Step 4: Simplify right side
    56,168,999.10x = 4,429,675,261,049,088
  5. Step 5: Solve for x
    x = 4,429,675,261,049,088/56,168,999.10
  6. Step 6: Final answer
    x = 78,863,346.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.