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Finding the Fourth Proportional to 323,565.74, 485,349.89 and 98,925.20

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Solution

The fourth proportional to 323,565.74, 485,349.89 and 98,925.20 is: 148,388.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,565.74 : 485,349.89 = 98,925.20 : x
  2. Step 2: Convert to fraction form
    323,565.74/485,349.89 = 98,925.20/x
  3. Step 3: Cross multiply
    323,565.74x = 485,349.89 × 98,925.20
  4. Step 4: Simplify right side
    323,565.74x = 48,013,332,016.85
  5. Step 5: Solve for x
    x = 48,013,332,016.85/323,565.74
  6. Step 6: Final answer
    x = 148,388.18

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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.