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Finding the Fourth Proportional to 67,640.40, 101,314.80 and 60,253.20

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Solution

The fourth proportional to 67,640.40, 101,314.80 and 60,253.20 is: 90,249.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,640.40 : 101,314.80 = 60,253.20 : x
  2. Step 2: Convert to fraction form
    67,640.40/101,314.80 = 60,253.20/x
  3. Step 3: Cross multiply
    67,640.40x = 101,314.80 × 60,253.20
  4. Step 4: Simplify right side
    67,640.40x = 6,104,540,907.36
  5. Step 5: Solve for x
    x = 6,104,540,907.36/67,640.40
  6. Step 6: Final answer
    x = 90,249.92

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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.