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Finding the Fourth Proportional to 67,863.60, 101,649.60 and 56,199.60

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Solution

The fourth proportional to 67,863.60, 101,649.60 and 56,199.60 is: 84,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,863.60 : 101,649.60 = 56,199.60 : x
  2. Step 2: Convert to fraction form
    67,863.60/101,649.60 = 56,199.60/x
  3. Step 3: Cross multiply
    67,863.60x = 101,649.60 × 56,199.60
  4. Step 4: Simplify right side
    67,863.60x = 5,712,666,860.16
  5. Step 5: Solve for x
    x = 5,712,666,860.16/67,863.60
  6. Step 6: Final answer
    x = 84,178.66

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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.