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Finding the Fourth Proportional to 127,806.86, 176,352.73 and 74,081.39

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Solution

The fourth proportional to 127,806.86, 176,352.73 and 74,081.39 is: 102,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,806.86 : 176,352.73 = 74,081.39 : x
  2. Step 2: Convert to fraction form
    127,806.86/176,352.73 = 74,081.39/x
  3. Step 3: Cross multiply
    127,806.86x = 176,352.73 × 74,081.39
  4. Step 4: Simplify right side
    127,806.86x = 13,064,454,301.73
  5. Step 5: Solve for x
    x = 13,064,454,301.73/127,806.86
  6. Step 6: Final answer
    x = 102,220.29

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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.