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Finding the Fourth Proportional to 88,964.20, 133,521.90 and 36,411.40

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Solution

The fourth proportional to 88,964.20, 133,521.90 and 36,411.40 is: 54,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,964.20 : 133,521.90 = 36,411.40 : x
  2. Step 2: Convert to fraction form
    88,964.20/133,521.90 = 36,411.40/x
  3. Step 3: Cross multiply
    88,964.20x = 133,521.90 × 36,411.40
  4. Step 4: Simplify right side
    88,964.20x = 4,861,719,309.66
  5. Step 5: Solve for x
    x = 4,861,719,309.66/88,964.20
  6. Step 6: Final answer
    x = 54,648.04

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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.