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Finding the Fourth Proportional to 234,149.28, 351,211.56 and 65,681.22

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Solution

The fourth proportional to 234,149.28, 351,211.56 and 65,681.22 is: 98,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,149.28 : 351,211.56 = 65,681.22 : x
  2. Step 2: Convert to fraction form
    234,149.28/351,211.56 = 65,681.22/x
  3. Step 3: Cross multiply
    234,149.28x = 351,211.56 × 65,681.22
  4. Step 4: Simplify right side
    234,149.28x = 23,068,003,738.90
  5. Step 5: Solve for x
    x = 23,068,003,738.90/234,149.28
  6. Step 6: Final answer
    x = 98,518.36

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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.