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Finding the Fourth Proportional to 361,371.78, 542,084.40 and 108,632.34

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Solution

The fourth proportional to 361,371.78, 542,084.40 and 108,632.34 is: 162,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,371.78 : 542,084.40 = 108,632.34 : x
  2. Step 2: Convert to fraction form
    361,371.78/542,084.40 = 108,632.34/x
  3. Step 3: Cross multiply
    361,371.78x = 542,084.40 × 108,632.34
  4. Step 4: Simplify right side
    361,371.78x = 58,887,896,849.50
  5. Step 5: Solve for x
    x = 58,887,896,849.50/361,371.78
  6. Step 6: Final answer
    x = 162,956.55

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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.