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Finding the Fourth Proportional to 119,735.16, 179,672.48 and 66,471.71

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Solution

The fourth proportional to 119,735.16, 179,672.48 and 66,471.71 is: 99,746.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,735.16 : 179,672.48 = 66,471.71 : x
  2. Step 2: Convert to fraction form
    119,735.16/179,672.48 = 66,471.71/x
  3. Step 3: Cross multiply
    119,735.16x = 179,672.48 × 66,471.71
  4. Step 4: Simplify right side
    119,735.16x = 11,943,135,754.82
  5. Step 5: Solve for x
    x = 11,943,135,754.82/119,735.16
  6. Step 6: Final answer
    x = 99,746.27

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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.