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Finding the Fourth Proportional to 117,333.68, 175,745.64 and 72,217.52

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Solution

The fourth proportional to 117,333.68, 175,745.64 and 72,217.52 is: 108,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,333.68 : 175,745.64 = 72,217.52 : x
  2. Step 2: Convert to fraction form
    117,333.68/175,745.64 = 72,217.52/x
  3. Step 3: Cross multiply
    117,333.68x = 175,745.64 × 72,217.52
  4. Step 4: Simplify right side
    117,333.68x = 12,691,914,271.61
  5. Step 5: Solve for x
    x = 12,691,914,271.61/117,333.68
  6. Step 6: Final answer
    x = 108,169.40

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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.