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Finding the Fourth Proportional to 205,930.57, 308,925.20 and 63,787.02

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Solution

The fourth proportional to 205,930.57, 308,925.20 and 63,787.02 is: 95,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,930.57 : 308,925.20 = 63,787.02 : x
  2. Step 2: Convert to fraction form
    205,930.57/308,925.20 = 63,787.02/x
  3. Step 3: Cross multiply
    205,930.57x = 308,925.20 × 63,787.02
  4. Step 4: Simplify right side
    205,930.57x = 19,705,416,489.34
  5. Step 5: Solve for x
    x = 19,705,416,489.34/205,930.57
  6. Step 6: Final answer
    x = 95,689.61

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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.