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Finding the Fourth Proportional to 169,726.60, 254,735.70 and 75,102.40

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Solution

The fourth proportional to 169,726.60, 254,735.70 and 75,102.40 is: 112,718.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,726.60 : 254,735.70 = 75,102.40 : x
  2. Step 2: Convert to fraction form
    169,726.60/254,735.70 = 75,102.40/x
  3. Step 3: Cross multiply
    169,726.60x = 254,735.70 × 75,102.40
  4. Step 4: Simplify right side
    169,726.60x = 19,131,262,435.68
  5. Step 5: Solve for x
    x = 19,131,262,435.68/169,726.60
  6. Step 6: Final answer
    x = 112,718.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.