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Finding the Fourth Proportional to 720,153.29, 1,080,230.30 and 187,672.97

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Solution

The fourth proportional to 720,153.29, 1,080,230.30 and 187,672.97 is: 281,509.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,153.29 : 1,080,230.30 = 187,672.97 : x
  2. Step 2: Convert to fraction form
    720,153.29/1,080,230.30 = 187,672.97/x
  3. Step 3: Cross multiply
    720,153.29x = 1,080,230.30 × 187,672.97
  4. Step 4: Simplify right side
    720,153.29x = 202,730,022,345.48
  5. Step 5: Solve for x
    x = 202,730,022,345.48/720,153.29
  6. Step 6: Final answer
    x = 281,509.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.