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Finding the Fourth Proportional to 123,947.20, 185,920.80 and 110,468.80

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Solution

The fourth proportional to 123,947.20, 185,920.80 and 110,468.80 is: 165,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,947.20 : 185,920.80 = 110,468.80 : x
  2. Step 2: Convert to fraction form
    123,947.20/185,920.80 = 110,468.80/x
  3. Step 3: Cross multiply
    123,947.20x = 185,920.80 × 110,468.80
  4. Step 4: Simplify right side
    123,947.20x = 20,538,447,671.04
  5. Step 5: Solve for x
    x = 20,538,447,671.04/123,947.20
  6. Step 6: Final answer
    x = 165,703.20

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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.