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Finding the Fourth Proportional to 80,275.76, 110,692.92 and 54,784.88

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Solution

The fourth proportional to 80,275.76, 110,692.92 and 54,784.88 is: 75,543.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,275.76 : 110,692.92 = 54,784.88 : x
  2. Step 2: Convert to fraction form
    80,275.76/110,692.92 = 54,784.88/x
  3. Step 3: Cross multiply
    80,275.76x = 110,692.92 × 54,784.88
  4. Step 4: Simplify right side
    80,275.76x = 6,064,298,339.05
  5. Step 5: Solve for x
    x = 6,064,298,339.05/80,275.76
  6. Step 6: Final answer
    x = 75,543.33

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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.