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Finding the Fourth Proportional to 113,097.60, 169,840.80 and 80,049.60

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Solution

The fourth proportional to 113,097.60, 169,840.80 and 80,049.60 is: 120,211.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,097.60 : 169,840.80 = 80,049.60 : x
  2. Step 2: Convert to fraction form
    113,097.60/169,840.80 = 80,049.60/x
  3. Step 3: Cross multiply
    113,097.60x = 169,840.80 × 80,049.60
  4. Step 4: Simplify right side
    113,097.60x = 13,595,688,103.68
  5. Step 5: Solve for x
    x = 13,595,688,103.68/113,097.60
  6. Step 6: Final answer
    x = 120,211.99

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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.