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Finding the Fourth Proportional to 124,542.58, 171,869.43 and 67,955.17

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Solution

The fourth proportional to 124,542.58, 171,869.43 and 67,955.17 is: 93,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,542.58 : 171,869.43 = 67,955.17 : x
  2. Step 2: Convert to fraction form
    124,542.58/171,869.43 = 67,955.17/x
  3. Step 3: Cross multiply
    124,542.58x = 171,869.43 × 67,955.17
  4. Step 4: Simplify right side
    124,542.58x = 11,679,416,333.45
  5. Step 5: Solve for x
    x = 11,679,416,333.45/124,542.58
  6. Step 6: Final answer
    x = 93,778.50

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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.