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Finding the Fourth Proportional to 67,951.80, 101,927.70 and 61,828.20

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Solution

The fourth proportional to 67,951.80, 101,927.70 and 61,828.20 is: 92,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,951.80 : 101,927.70 = 61,828.20 : x
  2. Step 2: Convert to fraction form
    67,951.80/101,927.70 = 61,828.20/x
  3. Step 3: Cross multiply
    67,951.80x = 101,927.70 × 61,828.20
  4. Step 4: Simplify right side
    67,951.80x = 6,302,006,221.14
  5. Step 5: Solve for x
    x = 6,302,006,221.14/67,951.80
  6. Step 6: Final answer
    x = 92,742.30

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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.