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Finding the Fourth Proportional to 323,507.75, 484,931.14 and 112,972.55

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Solution

The fourth proportional to 323,507.75, 484,931.14 and 112,972.55 is: 169,343.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,507.75 : 484,931.14 = 112,972.55 : x
  2. Step 2: Convert to fraction form
    323,507.75/484,931.14 = 112,972.55/x
  3. Step 3: Cross multiply
    323,507.75x = 484,931.14 × 112,972.55
  4. Step 4: Simplify right side
    323,507.75x = 54,783,904,753.12
  5. Step 5: Solve for x
    x = 54,783,904,753.12/323,507.75
  6. Step 6: Final answer
    x = 169,343.41

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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.