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Finding the Fourth Proportional to 361,689.12, 541,386.72 and 203,447.52

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Solution

The fourth proportional to 361,689.12, 541,386.72 and 203,447.52 is: 304,526.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,689.12 : 541,386.72 = 203,447.52 : x
  2. Step 2: Convert to fraction form
    361,689.12/541,386.72 = 203,447.52/x
  3. Step 3: Cross multiply
    361,689.12x = 541,386.72 × 203,447.52
  4. Step 4: Simplify right side
    361,689.12x = 110,143,785,544.93
  5. Step 5: Solve for x
    x = 110,143,785,544.93/361,689.12
  6. Step 6: Final answer
    x = 304,526.12

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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.