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Finding the Fourth Proportional to 67,398,895.80, 101,098,343.70 and 64,753,500.60

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Solution

The fourth proportional to 67,398,895.80, 101,098,343.70 and 64,753,500.60 is: 97,130,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,398,895.80 : 101,098,343.70 = 64,753,500.60 : x
  2. Step 2: Convert to fraction form
    67,398,895.80/101,098,343.70 = 64,753,500.60/x
  3. Step 3: Cross multiply
    67,398,895.80x = 101,098,343.70 × 64,753,500.60
  4. Step 4: Simplify right side
    67,398,895.80x = 6,546,471,659,436,957
  5. Step 5: Solve for x
    x = 6,546,471,659,436,957/67,398,895.80
  6. Step 6: Final answer
    x = 97,130,250.90

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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.