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Finding the Fourth Proportional to 119,956.68, 165,535.92 and 66,238.92

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Solution

The fourth proportional to 119,956.68, 165,535.92 and 66,238.92 is: 91,407.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,956.68 : 165,535.92 = 66,238.92 : x
  2. Step 2: Convert to fraction form
    119,956.68/165,535.92 = 66,238.92/x
  3. Step 3: Cross multiply
    119,956.68x = 165,535.92 × 66,238.92
  4. Step 4: Simplify right side
    119,956.68x = 10,964,920,562.01
  5. Step 5: Solve for x
    x = 10,964,920,562.01/119,956.68
  6. Step 6: Final answer
    x = 91,407.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.