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Finding the Fourth Proportional to 169,870.70, 254,564.22 and 125,145.74

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Solution

The fourth proportional to 169,870.70, 254,564.22 and 125,145.74 is: 187,540.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,870.70 : 254,564.22 = 125,145.74 : x
  2. Step 2: Convert to fraction form
    169,870.70/254,564.22 = 125,145.74/x
  3. Step 3: Cross multiply
    169,870.70x = 254,564.22 × 125,145.74
  4. Step 4: Simplify right side
    169,870.70x = 31,857,627,689.42
  5. Step 5: Solve for x
    x = 31,857,627,689.42/169,870.70
  6. Step 6: Final answer
    x = 187,540.45

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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.