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Finding the Fourth Proportional to 118,894.32, 164,105.19 and 73,545.96

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Solution

The fourth proportional to 118,894.32, 164,105.19 and 73,545.96 is: 101,512.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,894.32 : 164,105.19 = 73,545.96 : x
  2. Step 2: Convert to fraction form
    118,894.32/164,105.19 = 73,545.96/x
  3. Step 3: Cross multiply
    118,894.32x = 164,105.19 × 73,545.96
  4. Step 4: Simplify right side
    118,894.32x = 12,069,273,739.53
  5. Step 5: Solve for x
    x = 12,069,273,739.53/118,894.32
  6. Step 6: Final answer
    x = 101,512.62

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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.