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Finding the Fourth Proportional to 361,800.92, 542,784.06 and 125,143.40

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Solution

The fourth proportional to 361,800.92, 542,784.06 and 125,143.40 is: 187,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,800.92 : 542,784.06 = 125,143.40 : x
  2. Step 2: Convert to fraction form
    361,800.92/542,784.06 = 125,143.40/x
  3. Step 3: Cross multiply
    361,800.92x = 542,784.06 × 125,143.40
  4. Step 4: Simplify right side
    361,800.92x = 67,925,842,734.20
  5. Step 5: Solve for x
    x = 67,925,842,734.20/361,800.92
  6. Step 6: Final answer
    x = 187,743.70

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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.