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Finding the Fourth Proportional to 124,534.80, 171,856.08 and 67,944.96

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Solution

The fourth proportional to 124,534.80, 171,856.08 and 67,944.96 is: 93,762.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,534.80 : 171,856.08 = 67,944.96 : x
  2. Step 2: Convert to fraction form
    124,534.80/171,856.08 = 67,944.96/x
  3. Step 3: Cross multiply
    124,534.80x = 171,856.08 × 67,944.96
  4. Step 4: Simplify right side
    124,534.80x = 11,676,754,481.36
  5. Step 5: Solve for x
    x = 11,676,754,481.36/124,534.80
  6. Step 6: Final answer
    x = 93,762.98

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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.