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Finding the Fourth Proportional to 88,687.30, 133,043.10 and 29,516.80

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Solution

The fourth proportional to 88,687.30, 133,043.10 and 29,516.80 is: 44,279.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,687.30 : 133,043.10 = 29,516.80 : x
  2. Step 2: Convert to fraction form
    88,687.30/133,043.10 = 29,516.80/x
  3. Step 3: Cross multiply
    88,687.30x = 133,043.10 × 29,516.80
  4. Step 4: Simplify right side
    88,687.30x = 3,927,006,574.08
  5. Step 5: Solve for x
    x = 3,927,006,574.08/88,687.30
  6. Step 6: Final answer
    x = 44,279.24

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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.