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Finding the Fourth Proportional to 96,679.71, 145,013.72 and 57,486.24

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Solution

The fourth proportional to 96,679.71, 145,013.72 and 57,486.24 is: 86,225.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,679.71 : 145,013.72 = 57,486.24 : x
  2. Step 2: Convert to fraction form
    96,679.71/145,013.72 = 57,486.24/x
  3. Step 3: Cross multiply
    96,679.71x = 145,013.72 × 57,486.24
  4. Step 4: Simplify right side
    96,679.71x = 8,336,293,223.78
  5. Step 5: Solve for x
    x = 8,336,293,223.78/96,679.71
  6. Step 6: Final answer
    x = 86,225.88

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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.