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Finding the Fourth Proportional to 243,355.52, 365,046.27 and 74,991.48

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Solution

The fourth proportional to 243,355.52, 365,046.27 and 74,991.48 is: 112,491.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,355.52 : 365,046.27 = 74,991.48 : x
  2. Step 2: Convert to fraction form
    243,355.52/365,046.27 = 74,991.48/x
  3. Step 3: Cross multiply
    243,355.52x = 365,046.27 × 74,991.48
  4. Step 4: Simplify right side
    243,355.52x = 27,375,360,055.78
  5. Step 5: Solve for x
    x = 27,375,360,055.78/243,355.52
  6. Step 6: Final answer
    x = 112,491.22

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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.