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Finding the Fourth Proportional to 110,339.92, 165,292.78 and 72,785.26

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Solution

The fourth proportional to 110,339.92, 165,292.78 and 72,785.26 is: 109,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,339.92 : 165,292.78 = 72,785.26 : x
  2. Step 2: Convert to fraction form
    110,339.92/165,292.78 = 72,785.26/x
  3. Step 3: Cross multiply
    110,339.92x = 165,292.78 × 72,785.26
  4. Step 4: Simplify right side
    110,339.92x = 12,030,877,459.95
  5. Step 5: Solve for x
    x = 12,030,877,459.95/110,339.92
  6. Step 6: Final answer
    x = 109,034.68

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1.5x scale

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.