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Finding the Fourth Proportional to 58,613.13, 87,668.51 and 54,358.74

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Solution

The fourth proportional to 58,613.13, 87,668.51 and 54,358.74 is: 81,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,613.13 : 87,668.51 = 54,358.74 : x
  2. Step 2: Convert to fraction form
    58,613.13/87,668.51 = 54,358.74/x
  3. Step 3: Cross multiply
    58,613.13x = 87,668.51 × 54,358.74
  4. Step 4: Simplify right side
    58,613.13x = 4,765,549,469.48
  5. Step 5: Solve for x
    x = 4,765,549,469.48/58,613.13
  6. Step 6: Final answer
    x = 81,305.15

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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.