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Finding the Fourth Proportional to 67,897.80, 101,807.24 and 45,434.15

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Solution

The fourth proportional to 67,897.80, 101,807.24 and 45,434.15 is: 68,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,897.80 : 101,807.24 = 45,434.15 : x
  2. Step 2: Convert to fraction form
    67,897.80/101,807.24 = 45,434.15/x
  3. Step 3: Cross multiply
    67,897.80x = 101,807.24 × 45,434.15
  4. Step 4: Simplify right side
    67,897.80x = 4,625,524,677.04
  5. Step 5: Solve for x
    x = 4,625,524,677.04/67,897.80
  6. Step 6: Final answer
    x = 68,124.81

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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.