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Finding the Fourth Proportional to 119,532.68, 164,956.20 and 65,818.92

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Solution

The fourth proportional to 119,532.68, 164,956.20 and 65,818.92 is: 90,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,532.68 : 164,956.20 = 65,818.92 : x
  2. Step 2: Convert to fraction form
    119,532.68/164,956.20 = 65,818.92/x
  3. Step 3: Cross multiply
    119,532.68x = 164,956.20 × 65,818.92
  4. Step 4: Simplify right side
    119,532.68x = 10,857,238,931.30
  5. Step 5: Solve for x
    x = 10,857,238,931.30/119,532.68
  6. Step 6: Final answer
    x = 90,830.72

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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.