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Finding the Fourth Proportional to 388,506.38, 582,792.57 and 108,023.63

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Solution

The fourth proportional to 388,506.38, 582,792.57 and 108,023.63 is: 162,044.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,506.38 : 582,792.57 = 108,023.63 : x
  2. Step 2: Convert to fraction form
    388,506.38/582,792.57 = 108,023.63/x
  3. Step 3: Cross multiply
    388,506.38x = 582,792.57 × 108,023.63
  4. Step 4: Simplify right side
    388,506.38x = 62,955,366,034.47
  5. Step 5: Solve for x
    x = 62,955,366,034.47/388,506.38
  6. Step 6: Final answer
    x = 162,044.62

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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.