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Finding the Fourth Proportional to 516,367.73, 774,552.20 and 161,383.61

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Solution

The fourth proportional to 516,367.73, 774,552.20 and 161,383.61 is: 242,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,367.73 : 774,552.20 = 161,383.61 : x
  2. Step 2: Convert to fraction form
    516,367.73/774,552.20 = 161,383.61/x
  3. Step 3: Cross multiply
    516,367.73x = 774,552.20 × 161,383.61
  4. Step 4: Simplify right side
    516,367.73x = 125,000,025,489.76
  5. Step 5: Solve for x
    x = 125,000,025,489.76/516,367.73
  6. Step 6: Final answer
    x = 242,075.60

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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.