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Finding the Fourth Proportional to 424,034.17, 636,048.01 and 108,490.57

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Solution

The fourth proportional to 424,034.17, 636,048.01 and 108,490.57 is: 162,735.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,034.17 : 636,048.01 = 108,490.57 : x
  2. Step 2: Convert to fraction form
    424,034.17/636,048.01 = 108,490.57/x
  3. Step 3: Cross multiply
    424,034.17x = 636,048.01 × 108,490.57
  4. Step 4: Simplify right side
    424,034.17x = 69,005,211,152.27
  5. Step 5: Solve for x
    x = 69,005,211,152.27/424,034.17
  6. Step 6: Final answer
    x = 162,735.02

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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.