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Finding the Fourth Proportional to 118,616.88, 177,728.49 and 83,482.73

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Solution

The fourth proportional to 118,616.88, 177,728.49 and 83,482.73 is: 125,085.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,616.88 : 177,728.49 = 83,482.73 : x
  2. Step 2: Convert to fraction form
    118,616.88/177,728.49 = 83,482.73/x
  3. Step 3: Cross multiply
    118,616.88x = 177,728.49 × 83,482.73
  4. Step 4: Simplify right side
    118,616.88x = 14,837,259,321.82
  5. Step 5: Solve for x
    x = 14,837,259,321.82/118,616.88
  6. Step 6: Final answer
    x = 125,085.56

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1.5x scale

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.