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Finding the Fourth Proportional to 361,951.20, 542,855.56 and 122,041.76

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Solution

The fourth proportional to 361,951.20, 542,855.56 and 122,041.76 is: 183,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,951.20 : 542,855.56 = 122,041.76 : x
  2. Step 2: Convert to fraction form
    361,951.20/542,855.56 = 122,041.76/x
  3. Step 3: Cross multiply
    361,951.20x = 542,855.56 × 122,041.76
  4. Step 4: Simplify right side
    361,951.20x = 66,251,047,968.19
  5. Step 5: Solve for x
    x = 66,251,047,968.19/361,951.20
  6. Step 6: Final answer
    x = 183,038.62

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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.