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Finding the Fourth Proportional to 129,925.80, 194,456.70 and 94,285.80

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Solution

The fourth proportional to 129,925.80, 194,456.70 and 94,285.80 is: 141,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,925.80 : 194,456.70 = 94,285.80 : x
  2. Step 2: Convert to fraction form
    129,925.80/194,456.70 = 94,285.80/x
  3. Step 3: Cross multiply
    129,925.80x = 194,456.70 × 94,285.80
  4. Step 4: Simplify right side
    129,925.80x = 18,334,505,524.86
  5. Step 5: Solve for x
    x = 18,334,505,524.86/129,925.80
  6. Step 6: Final answer
    x = 141,115.20

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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.