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Finding the Fourth Proportional to 371,734.80, 557,601.60 and 105,497.92

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Solution

The fourth proportional to 371,734.80, 557,601.60 and 105,497.92 is: 158,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,734.80 : 557,601.60 = 105,497.92 : x
  2. Step 2: Convert to fraction form
    371,734.80/557,601.60 = 105,497.92/x
  3. Step 3: Cross multiply
    371,734.80x = 557,601.60 × 105,497.92
  4. Step 4: Simplify right side
    371,734.80x = 58,825,808,988.67
  5. Step 5: Solve for x
    x = 58,825,808,988.67/371,734.80
  6. Step 6: Final answer
    x = 158,246.71

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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.