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Finding the Fourth Proportional to 169,685.87, 254,292.36 and 127,516.71

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Solution

The fourth proportional to 169,685.87, 254,292.36 and 127,516.71 is: 191,097.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,685.87 : 254,292.36 = 127,516.71 : x
  2. Step 2: Convert to fraction form
    169,685.87/254,292.36 = 127,516.71/x
  3. Step 3: Cross multiply
    169,685.87x = 254,292.36 × 127,516.71
  4. Step 4: Simplify right side
    169,685.87x = 32,426,524,371.83
  5. Step 5: Solve for x
    x = 32,426,524,371.83/169,685.87
  6. Step 6: Final answer
    x = 191,097.38

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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.