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Finding the Fourth Proportional to 86,497.63, 129,751.91 and 36,568.42

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Solution

The fourth proportional to 86,497.63, 129,751.91 and 36,568.42 is: 54,854.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,497.63 : 129,751.91 = 36,568.42 : x
  2. Step 2: Convert to fraction form
    86,497.63/129,751.91 = 36,568.42/x
  3. Step 3: Cross multiply
    86,497.63x = 129,751.91 × 36,568.42
  4. Step 4: Simplify right side
    86,497.63x = 4,744,822,340.68
  5. Step 5: Solve for x
    x = 4,744,822,340.68/86,497.63
  6. Step 6: Final answer
    x = 54,854.94

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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.