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Finding the Fourth Proportional to 516,925.82, 775,425.74 and 137,844.56

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Solution

The fourth proportional to 516,925.82, 775,425.74 and 137,844.56 is: 206,776.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,925.82 : 775,425.74 = 137,844.56 : x
  2. Step 2: Convert to fraction form
    516,925.82/775,425.74 = 137,844.56/x
  3. Step 3: Cross multiply
    516,925.82x = 775,425.74 × 137,844.56
  4. Step 4: Simplify right side
    516,925.82x = 106,888,221,192.32
  5. Step 5: Solve for x
    x = 106,888,221,192.32/516,925.82
  6. Step 6: Final answer
    x = 206,776.71

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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.