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Finding the Fourth Proportional to 159,387.12, 219,948.48 and 95,687.28

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Solution

The fourth proportional to 159,387.12, 219,948.48 and 95,687.28 is: 132,045.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,387.12 : 219,948.48 = 95,687.28 : x
  2. Step 2: Convert to fraction form
    159,387.12/219,948.48 = 95,687.28/x
  3. Step 3: Cross multiply
    159,387.12x = 219,948.48 × 95,687.28
  4. Step 4: Simplify right side
    159,387.12x = 21,046,271,791.33
  5. Step 5: Solve for x
    x = 21,046,271,791.33/159,387.12
  6. Step 6: Final answer
    x = 132,045.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.