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Finding the Fourth Proportional to 67,398,904.80, 101,098,357.20 and 64,753,509.60

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Solution

The fourth proportional to 67,398,904.80, 101,098,357.20 and 64,753,509.60 is: 97,130,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,398,904.80 : 101,098,357.20 = 64,753,509.60 : x
  2. Step 2: Convert to fraction form
    67,398,904.80/101,098,357.20 = 64,753,509.60/x
  3. Step 3: Cross multiply
    67,398,904.80x = 101,098,357.20 × 64,753,509.60
  4. Step 4: Simplify right side
    67,398,904.80x = 6,546,473,443,494,429
  5. Step 5: Solve for x
    x = 6,546,473,443,494,429/67,398,904.80
  6. Step 6: Final answer
    x = 97,130,264.40

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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.