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Finding the Fourth Proportional to 187,167.35, 280,720.26 and 67,199.46

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Solution

The fourth proportional to 187,167.35, 280,720.26 and 67,199.46 is: 100,788.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,167.35 : 280,720.26 = 67,199.46 : x
  2. Step 2: Convert to fraction form
    187,167.35/280,720.26 = 67,199.46/x
  3. Step 3: Cross multiply
    187,167.35x = 280,720.26 × 67,199.46
  4. Step 4: Simplify right side
    187,167.35x = 18,864,249,883.06
  5. Step 5: Solve for x
    x = 18,864,249,883.06/187,167.35
  6. Step 6: Final answer
    x = 100,788.15

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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.