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Finding the Fourth Proportional to 116,572.71, 175,034.03 and 66,709.11

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Solution

The fourth proportional to 116,572.71, 175,034.03 and 66,709.11 is: 100,163.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,572.71 : 175,034.03 = 66,709.11 : x
  2. Step 2: Convert to fraction form
    116,572.71/175,034.03 = 66,709.11/x
  3. Step 3: Cross multiply
    116,572.71x = 175,034.03 × 66,709.11
  4. Step 4: Simplify right side
    116,572.71x = 11,676,364,027.47
  5. Step 5: Solve for x
    x = 11,676,364,027.47/116,572.71
  6. Step 6: Final answer
    x = 100,163.79

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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.