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Finding the Fourth Proportional to 124,963.73, 172,270.56 and 89,091.46

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Solution

The fourth proportional to 124,963.73, 172,270.56 and 89,091.46 is: 122,818.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,963.73 : 172,270.56 = 89,091.46 : x
  2. Step 2: Convert to fraction form
    124,963.73/172,270.56 = 89,091.46/x
  3. Step 3: Cross multiply
    124,963.73x = 172,270.56 × 89,091.46
  4. Step 4: Simplify right side
    124,963.73x = 15,347,836,254.85
  5. Step 5: Solve for x
    x = 15,347,836,254.85/124,963.73
  6. Step 6: Final answer
    x = 122,818.33

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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.