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Finding the Fourth Proportional to 118,616.76, 177,728.30 and 83,482.60

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Solution

The fourth proportional to 118,616.76, 177,728.30 and 83,482.60 is: 125,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,616.76 : 177,728.30 = 83,482.60 : x
  2. Step 2: Convert to fraction form
    118,616.76/177,728.30 = 83,482.60/x
  3. Step 3: Cross multiply
    118,616.76x = 177,728.30 × 83,482.60
  4. Step 4: Simplify right side
    118,616.76x = 14,837,220,577.58
  5. Step 5: Solve for x
    x = 14,837,220,577.58/118,616.76
  6. Step 6: Final answer
    x = 125,085.36

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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.