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Finding the Fourth Proportional to 127,876.71, 176,469.50 and 74,193.15

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Solution

The fourth proportional to 127,876.71, 176,469.50 and 74,193.15 is: 102,386.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,876.71 : 176,469.50 = 74,193.15 : x
  2. Step 2: Convert to fraction form
    127,876.71/176,469.50 = 74,193.15/x
  3. Step 3: Cross multiply
    127,876.71x = 176,469.50 × 74,193.15
  4. Step 4: Simplify right side
    127,876.71x = 13,092,828,083.93
  5. Step 5: Solve for x
    x = 13,092,828,083.93/127,876.71
  6. Step 6: Final answer
    x = 102,386.34

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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.