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Finding the Fourth Proportional to 234,149.50, 351,211.87 and 65,681.52

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Solution

The fourth proportional to 234,149.50, 351,211.87 and 65,681.52 is: 98,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,149.50 : 351,211.87 = 65,681.52 : x
  2. Step 2: Convert to fraction form
    234,149.50/351,211.87 = 65,681.52/x
  3. Step 3: Cross multiply
    234,149.50x = 351,211.87 × 65,681.52
  4. Step 4: Simplify right side
    234,149.50x = 23,068,129,463.64
  5. Step 5: Solve for x
    x = 23,068,129,463.64/234,149.50
  6. Step 6: Final answer
    x = 98,518.81

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1.5x scale

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.