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Finding the Fourth Proportional to 73,849.20, 110,773.80 and 54,020.40

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Solution

The fourth proportional to 73,849.20, 110,773.80 and 54,020.40 is: 81,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,849.20 : 110,773.80 = 54,020.40 : x
  2. Step 2: Convert to fraction form
    73,849.20/110,773.80 = 54,020.40/x
  3. Step 3: Cross multiply
    73,849.20x = 110,773.80 × 54,020.40
  4. Step 4: Simplify right side
    73,849.20x = 5,984,044,985.52
  5. Step 5: Solve for x
    x = 5,984,044,985.52/73,849.20
  6. Step 6: Final answer
    x = 81,030.60

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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.