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Finding the Fourth Proportional to 88,929.80, 133,346.10 and 36,279.80

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Solution

The fourth proportional to 88,929.80, 133,346.10 and 36,279.80 is: 54,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,929.80 : 133,346.10 = 36,279.80 : x
  2. Step 2: Convert to fraction form
    88,929.80/133,346.10 = 36,279.80/x
  3. Step 3: Cross multiply
    88,929.80x = 133,346.10 × 36,279.80
  4. Step 4: Simplify right side
    88,929.80x = 4,837,769,838.78
  5. Step 5: Solve for x
    x = 4,837,769,838.78/88,929.80
  6. Step 6: Final answer
    x = 54,399.87

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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.