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Finding the Fourth Proportional to 124,450.57, 171,741.47 and 67,861.95

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Solution

The fourth proportional to 124,450.57, 171,741.47 and 67,861.95 is: 93,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,450.57 : 171,741.47 = 67,861.95 : x
  2. Step 2: Convert to fraction form
    124,450.57/171,741.47 = 67,861.95/x
  3. Step 3: Cross multiply
    124,450.57x = 171,741.47 × 67,861.95
  4. Step 4: Simplify right side
    124,450.57x = 11,654,710,191.36
  5. Step 5: Solve for x
    x = 11,654,710,191.36/124,450.57
  6. Step 6: Final answer
    x = 93,649.31

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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.