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Finding the Fourth Proportional to 169,871.70, 254,565.72 and 125,146.74

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Solution

The fourth proportional to 169,871.70, 254,565.72 and 125,146.74 is: 187,541.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,871.70 : 254,565.72 = 125,146.74 : x
  2. Step 2: Convert to fraction form
    169,871.70/254,565.72 = 125,146.74/x
  3. Step 3: Cross multiply
    169,871.70x = 254,565.72 × 125,146.74
  4. Step 4: Simplify right side
    169,871.70x = 31,858,069,973.75
  5. Step 5: Solve for x
    x = 31,858,069,973.75/169,871.70
  6. Step 6: Final answer
    x = 187,541.95

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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.