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Finding the Fourth Proportional to 86,265.78, 129,497.13 and 57,823.89

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Solution

The fourth proportional to 86,265.78, 129,497.13 and 57,823.89 is: 86,801.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,265.78 : 129,497.13 = 57,823.89 : x
  2. Step 2: Convert to fraction form
    86,265.78/129,497.13 = 57,823.89/x
  3. Step 3: Cross multiply
    86,265.78x = 129,497.13 × 57,823.89
  4. Step 4: Simplify right side
    86,265.78x = 7,488,027,800.44
  5. Step 5: Solve for x
    x = 7,488,027,800.44/86,265.78
  6. Step 6: Final answer
    x = 86,801.83

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1.5x scale

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.