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Finding the Fourth Proportional to 181,557.78, 250,488.22 and 129,831.18

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Solution

The fourth proportional to 181,557.78, 250,488.22 and 129,831.18 is: 179,123.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,557.78 : 250,488.22 = 129,831.18 : x
  2. Step 2: Convert to fraction form
    181,557.78/250,488.22 = 129,831.18/x
  3. Step 3: Cross multiply
    181,557.78x = 250,488.22 × 129,831.18
  4. Step 4: Simplify right side
    181,557.78x = 32,521,181,178.70
  5. Step 5: Solve for x
    x = 32,521,181,178.70/181,557.78
  6. Step 6: Final answer
    x = 179,123.04

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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.