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Finding the Fourth Proportional to 60,656,918.90, 85,070,851.90 and 60,656,918.90

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Solution

The fourth proportional to 60,656,918.90, 85,070,851.90 and 60,656,918.90 is: 85,070,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,656,918.90 : 85,070,851.90 = 60,656,918.90 : x
  2. Step 2: Convert to fraction form
    60,656,918.90/85,070,851.90 = 60,656,918.90/x
  3. Step 3: Cross multiply
    60,656,918.90x = 85,070,851.90 × 60,656,918.90
  4. Step 4: Simplify right side
    60,656,918.90x = 5,160,135,764,452,211
  5. Step 5: Solve for x
    x = 5,160,135,764,452,211/60,656,918.90
  6. Step 6: Final answer
    x = 85,070,851.90

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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.