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Finding the Fourth Proportional to 118,616.26, 177,727.55 and 83,482.11

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Solution

The fourth proportional to 118,616.26, 177,727.55 and 83,482.11 is: 125,084.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,616.26 : 177,727.55 = 83,482.11 : x
  2. Step 2: Convert to fraction form
    118,616.26/177,727.55 = 83,482.11/x
  3. Step 3: Cross multiply
    118,616.26x = 177,727.55 × 83,482.11
  4. Step 4: Simplify right side
    118,616.26x = 14,837,069,990.49
  5. Step 5: Solve for x
    x = 14,837,069,990.49/118,616.26
  6. Step 6: Final answer
    x = 125,084.62

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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.