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Finding the Fourth Proportional to 118,616.96, 177,811.13 and 43,696.15

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Solution

The fourth proportional to 118,616.96, 177,811.13 and 43,696.15 is: 65,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,616.96 : 177,811.13 = 43,696.15 : x
  2. Step 2: Convert to fraction form
    118,616.96/177,811.13 = 43,696.15/x
  3. Step 3: Cross multiply
    118,616.96x = 177,811.13 × 43,696.15
  4. Step 4: Simplify right side
    118,616.96x = 7,769,660,700.61
  5. Step 5: Solve for x
    x = 7,769,660,700.61/118,616.96
  6. Step 6: Final answer
    x = 65,502.11

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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.