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Finding the Fourth Proportional to 167,700.64, 231,405.84 and 113,371

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Solution

The fourth proportional to 167,700.64, 231,405.84 and 113,371 is: 156,437.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,700.64 : 231,405.84 = 113,371 : x
  2. Step 2: Convert to fraction form
    167,700.64/231,405.84 = 113,371/x
  3. Step 3: Cross multiply
    167,700.64x = 231,405.84 × 113,371
  4. Step 4: Simplify right side
    167,700.64x = 26,234,711,486.64
  5. Step 5: Solve for x
    x = 26,234,711,486.64/167,700.64
  6. Step 6: Final answer
    x = 156,437.75

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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.