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Finding the Fourth Proportional to 356,575.92, 534,859.77 and 86,705.58

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Solution

The fourth proportional to 356,575.92, 534,859.77 and 86,705.58 is: 130,057.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,575.92 : 534,859.77 = 86,705.58 : x
  2. Step 2: Convert to fraction form
    356,575.92/534,859.77 = 86,705.58/x
  3. Step 3: Cross multiply
    356,575.92x = 534,859.77 × 86,705.58
  4. Step 4: Simplify right side
    356,575.92x = 46,375,326,576.52
  5. Step 5: Solve for x
    x = 46,375,326,576.52/356,575.92
  6. Step 6: Final answer
    x = 130,057.37

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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.