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Finding the Fourth Proportional to 67,811.91, 101,703.96 and 25,677.46

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Solution

The fourth proportional to 67,811.91, 101,703.96 and 25,677.46 is: 38,510.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,811.91 : 101,703.96 = 25,677.46 : x
  2. Step 2: Convert to fraction form
    67,811.91/101,703.96 = 25,677.46/x
  3. Step 3: Cross multiply
    67,811.91x = 101,703.96 × 25,677.46
  4. Step 4: Simplify right side
    67,811.91x = 2,611,499,364.74
  5. Step 5: Solve for x
    x = 2,611,499,364.74/67,811.91
  6. Step 6: Final answer
    x = 38,510.92

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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.