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Finding the Fourth Proportional to 140,611.85, 194,134.88 and 125,478.48

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Solution

The fourth proportional to 140,611.85, 194,134.88 and 125,478.48 is: 173,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,611.85 : 194,134.88 = 125,478.48 : x
  2. Step 2: Convert to fraction form
    140,611.85/194,134.88 = 125,478.48/x
  3. Step 3: Cross multiply
    140,611.85x = 194,134.88 × 125,478.48
  4. Step 4: Simplify right side
    140,611.85x = 24,359,750,699.08
  5. Step 5: Solve for x
    x = 24,359,750,699.08/140,611.85
  6. Step 6: Final answer
    x = 173,241.10

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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.