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Finding the Fourth Proportional to 250,251.69, 375,298.95 and 81,733.62

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Solution

The fourth proportional to 250,251.69, 375,298.95 and 81,733.62 is: 122,574.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,251.69 : 375,298.95 = 81,733.62 : x
  2. Step 2: Convert to fraction form
    250,251.69/375,298.95 = 81,733.62/x
  3. Step 3: Cross multiply
    250,251.69x = 375,298.95 × 81,733.62
  4. Step 4: Simplify right side
    250,251.69x = 30,674,541,765.70
  5. Step 5: Solve for x
    x = 30,674,541,765.70/250,251.69
  6. Step 6: Final answer
    x = 122,574.76

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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.