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Finding the Fourth Proportional to 60,281.81, 90,320.75 and 36,517.29

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Solution

The fourth proportional to 60,281.81, 90,320.75 and 36,517.29 is: 54,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,281.81 : 90,320.75 = 36,517.29 : x
  2. Step 2: Convert to fraction form
    60,281.81/90,320.75 = 36,517.29/x
  3. Step 3: Cross multiply
    60,281.81x = 90,320.75 × 36,517.29
  4. Step 4: Simplify right side
    60,281.81x = 3,298,269,020.77
  5. Step 5: Solve for x
    x = 3,298,269,020.77/60,281.81
  6. Step 6: Final answer
    x = 54,714.17

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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.