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Finding the Fourth Proportional to 83,080.60, 124,620.90 and 73,895.20

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Solution

The fourth proportional to 83,080.60, 124,620.90 and 73,895.20 is: 110,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,080.60 : 124,620.90 = 73,895.20 : x
  2. Step 2: Convert to fraction form
    83,080.60/124,620.90 = 73,895.20/x
  3. Step 3: Cross multiply
    83,080.60x = 124,620.90 × 73,895.20
  4. Step 4: Simplify right side
    83,080.60x = 9,208,886,329.68
  5. Step 5: Solve for x
    x = 9,208,886,329.68/83,080.60
  6. Step 6: Final answer
    x = 110,842.80

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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.