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Finding the Fourth Proportional to 124,511.98, 171,882.20 and 84,347.73

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Solution

The fourth proportional to 124,511.98, 171,882.20 and 84,347.73 is: 116,437.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,511.98 : 171,882.20 = 84,347.73 : x
  2. Step 2: Convert to fraction form
    124,511.98/171,882.20 = 84,347.73/x
  3. Step 3: Cross multiply
    124,511.98x = 171,882.20 × 84,347.73
  4. Step 4: Simplify right side
    124,511.98x = 14,497,873,397.41
  5. Step 5: Solve for x
    x = 14,497,873,397.41/124,511.98
  6. Step 6: Final answer
    x = 116,437.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.