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Finding the Fourth Proportional to 371,577.92, 557,366.86 and 105,340.73

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Solution

The fourth proportional to 371,577.92, 557,366.86 and 105,340.73 is: 158,011.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,577.92 : 557,366.86 = 105,340.73 : x
  2. Step 2: Convert to fraction form
    371,577.92/557,366.86 = 105,340.73/x
  3. Step 3: Cross multiply
    371,577.92x = 557,366.86 × 105,340.73
  4. Step 4: Simplify right side
    371,577.92x = 58,713,433,040.27
  5. Step 5: Solve for x
    x = 58,713,433,040.27/371,577.92
  6. Step 6: Final answer
    x = 158,011.09

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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.