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Finding the Fourth Proportional to 424,033.92, 636,047.64 and 108,490.32

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Solution

The fourth proportional to 424,033.92, 636,047.64 and 108,490.32 is: 162,734.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,033.92 : 636,047.64 = 108,490.32 : x
  2. Step 2: Convert to fraction form
    424,033.92/636,047.64 = 108,490.32/x
  3. Step 3: Cross multiply
    424,033.92x = 636,047.64 × 108,490.32
  4. Step 4: Simplify right side
    424,033.92x = 69,005,011,998.84
  5. Step 5: Solve for x
    x = 69,005,011,998.84/424,033.92
  6. Step 6: Final answer
    x = 162,734.65

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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.