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Finding the Fourth Proportional to 361,886.13, 499,425.71 and 208,952.55

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Solution

The fourth proportional to 361,886.13, 499,425.71 and 208,952.55 is: 288,367.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,886.13 : 499,425.71 = 208,952.55 : x
  2. Step 2: Convert to fraction form
    361,886.13/499,425.71 = 208,952.55/x
  3. Step 3: Cross multiply
    361,886.13x = 499,425.71 × 208,952.55
  4. Step 4: Simplify right side
    361,886.13x = 104,356,274,595.30
  5. Step 5: Solve for x
    x = 104,356,274,595.30/361,886.13
  6. Step 6: Final answer
    x = 288,367.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.