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Finding the Fourth Proportional to 93,799.16, 140,698.49 and 72,482.90

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Solution

The fourth proportional to 93,799.16, 140,698.49 and 72,482.90 is: 108,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,799.16 : 140,698.49 = 72,482.90 : x
  2. Step 2: Convert to fraction form
    93,799.16/140,698.49 = 72,482.90/x
  3. Step 3: Cross multiply
    93,799.16x = 140,698.49 × 72,482.90
  4. Step 4: Simplify right side
    93,799.16x = 10,198,234,306.34
  5. Step 5: Solve for x
    x = 10,198,234,306.34/93,799.16
  6. Step 6: Final answer
    x = 108,724.15

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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.