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Finding the Fourth Proportional to 148,609.64, 222,742.80 and 68,480.10

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Solution

The fourth proportional to 148,609.64, 222,742.80 and 68,480.10 is: 102,641.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,609.64 : 222,742.80 = 68,480.10 : x
  2. Step 2: Convert to fraction form
    148,609.64/222,742.80 = 68,480.10/x
  3. Step 3: Cross multiply
    148,609.64x = 222,742.80 × 68,480.10
  4. Step 4: Simplify right side
    148,609.64x = 15,253,449,218.28
  5. Step 5: Solve for x
    x = 15,253,449,218.28/148,609.64
  6. Step 6: Final answer
    x = 102,641.05

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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.