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Finding the Fourth Proportional to 80,643.56, 111,279.22 and 46,652.68

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Solution

The fourth proportional to 80,643.56, 111,279.22 and 46,652.68 is: 64,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,643.56 : 111,279.22 = 46,652.68 : x
  2. Step 2: Convert to fraction form
    80,643.56/111,279.22 = 46,652.68/x
  3. Step 3: Cross multiply
    80,643.56x = 111,279.22 × 46,652.68
  4. Step 4: Simplify right side
    80,643.56x = 5,191,473,841.31
  5. Step 5: Solve for x
    x = 5,191,473,841.31/80,643.56
  6. Step 6: Final answer
    x = 64,375.55

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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.