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Finding the Fourth Proportional to 363,639.15, 544,857.28 and 185,901.66

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Solution

The fourth proportional to 363,639.15, 544,857.28 and 185,901.66 is: 278,545.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,639.15 : 544,857.28 = 185,901.66 : x
  2. Step 2: Convert to fraction form
    363,639.15/544,857.28 = 185,901.66/x
  3. Step 3: Cross multiply
    363,639.15x = 544,857.28 × 185,901.66
  4. Step 4: Simplify right side
    363,639.15x = 101,289,872,815.09
  5. Step 5: Solve for x
    x = 101,289,872,815.09/363,639.15
  6. Step 6: Final answer
    x = 278,545.02

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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.