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Finding the Fourth Proportional to 169,947.04, 254,916.24 and 45,287.68

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Solution

The fourth proportional to 169,947.04, 254,916.24 and 45,287.68 is: 67,930.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,947.04 : 254,916.24 = 45,287.68 : x
  2. Step 2: Convert to fraction form
    169,947.04/254,916.24 = 45,287.68/x
  3. Step 3: Cross multiply
    169,947.04x = 254,916.24 × 45,287.68
  4. Step 4: Simplify right side
    169,947.04x = 11,544,565,103.92
  5. Step 5: Solve for x
    x = 11,544,565,103.92/169,947.04
  6. Step 6: Final answer
    x = 67,930.37

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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.