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Finding the Fourth Proportional to 65,556,057.80, 98,145,129.90 and 65,556,057.80

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Solution

The fourth proportional to 65,556,057.80, 98,145,129.90 and 65,556,057.80 is: 98,145,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,556,057.80 : 98,145,129.90 = 65,556,057.80 : x
  2. Step 2: Convert to fraction form
    65,556,057.80/98,145,129.90 = 65,556,057.80/x
  3. Step 3: Cross multiply
    65,556,057.80x = 98,145,129.90 × 65,556,057.80
  4. Step 4: Simplify right side
    65,556,057.80x = 6,434,007,808,512,908
  5. Step 5: Solve for x
    x = 6,434,007,808,512,908/65,556,057.80
  6. Step 6: Final answer
    x = 98,145,129.90

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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.