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Finding the Fourth Proportional to 160,703.68, 221,716.70 and 92,719.04

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Solution

The fourth proportional to 160,703.68, 221,716.70 and 92,719.04 is: 127,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,703.68 : 221,716.70 = 92,719.04 : x
  2. Step 2: Convert to fraction form
    160,703.68/221,716.70 = 92,719.04/x
  3. Step 3: Cross multiply
    160,703.68x = 221,716.70 × 92,719.04
  4. Step 4: Simplify right side
    160,703.68x = 20,557,359,575.97
  5. Step 5: Solve for x
    x = 20,557,359,575.97/160,703.68
  6. Step 6: Final answer
    x = 127,920.90

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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.