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Finding the Fourth Proportional to 239,243.66, 358,921.04 and 81,473.48

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Solution

The fourth proportional to 239,243.66, 358,921.04 and 81,473.48 is: 122,229.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,243.66 : 358,921.04 = 81,473.48 : x
  2. Step 2: Convert to fraction form
    239,243.66/358,921.04 = 81,473.48/x
  3. Step 3: Cross multiply
    239,243.66x = 358,921.04 × 81,473.48
  4. Step 4: Simplify right side
    239,243.66x = 29,242,543,972.05
  5. Step 5: Solve for x
    x = 29,242,543,972.05/239,243.66
  6. Step 6: Final answer
    x = 122,229.13

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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.