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Finding the Fourth Proportional to 268,565.20, 402,502.20 and 205,925.20

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Solution

The fourth proportional to 268,565.20, 402,502.20 and 205,925.20 is: 308,622.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,565.20 : 402,502.20 = 205,925.20 : x
  2. Step 2: Convert to fraction form
    268,565.20/402,502.20 = 205,925.20/x
  3. Step 3: Cross multiply
    268,565.20x = 402,502.20 × 205,925.20
  4. Step 4: Simplify right side
    268,565.20x = 82,885,346,035.44
  5. Step 5: Solve for x
    x = 82,885,346,035.44/268,565.20
  6. Step 6: Final answer
    x = 308,622.81

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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.