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Finding the Fourth Proportional to 67,903.22, 93,718.04 and 39,217.73

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Solution

The fourth proportional to 67,903.22, 93,718.04 and 39,217.73 is: 54,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,903.22 : 93,718.04 = 39,217.73 : x
  2. Step 2: Convert to fraction form
    67,903.22/93,718.04 = 39,217.73/x
  3. Step 3: Cross multiply
    67,903.22x = 93,718.04 × 39,217.73
  4. Step 4: Simplify right side
    67,903.22x = 3,675,408,124.17
  5. Step 5: Solve for x
    x = 3,675,408,124.17/67,903.22
  6. Step 6: Final answer
    x = 54,127.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.