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Finding the Fourth Proportional to 67,825.80, 101,544.30 and 65,881.80

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Solution

The fourth proportional to 67,825.80, 101,544.30 and 65,881.80 is: 98,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,825.80 : 101,544.30 = 65,881.80 : x
  2. Step 2: Convert to fraction form
    67,825.80/101,544.30 = 65,881.80/x
  3. Step 3: Cross multiply
    67,825.80x = 101,544.30 × 65,881.80
  4. Step 4: Simplify right side
    67,825.80x = 6,689,921,263.74
  5. Step 5: Solve for x
    x = 6,689,921,263.74/67,825.80
  6. Step 6: Final answer
    x = 98,633.87

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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.