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Finding the Fourth Proportional to 231,588.28, 319,591.80 and 125,604.28

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Solution

The fourth proportional to 231,588.28, 319,591.80 and 125,604.28 is: 173,333.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,588.28 : 319,591.80 = 125,604.28 : x
  2. Step 2: Convert to fraction form
    231,588.28/319,591.80 = 125,604.28/x
  3. Step 3: Cross multiply
    231,588.28x = 319,591.80 × 125,604.28
  4. Step 4: Simplify right side
    231,588.28x = 40,142,097,932.90
  5. Step 5: Solve for x
    x = 40,142,097,932.90/231,588.28
  6. Step 6: Final answer
    x = 173,333.89

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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.