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Finding the Fourth Proportional to 117,108.92, 175,318.86 and 72,592.76

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Solution

The fourth proportional to 117,108.92, 175,318.86 and 72,592.76 is: 108,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,108.92 : 175,318.86 = 72,592.76 : x
  2. Step 2: Convert to fraction form
    117,108.92/175,318.86 = 72,592.76/x
  3. Step 3: Cross multiply
    117,108.92x = 175,318.86 × 72,592.76
  4. Step 4: Simplify right side
    117,108.92x = 12,726,879,927.45
  5. Step 5: Solve for x
    x = 12,726,879,927.45/117,108.92
  6. Step 6: Final answer
    x = 108,675.58

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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.