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Finding the Fourth Proportional to 118,654.80, 177,884.64 and 55,443.66

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Solution

The fourth proportional to 118,654.80, 177,884.64 and 55,443.66 is: 83,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,654.80 : 177,884.64 = 55,443.66 : x
  2. Step 2: Convert to fraction form
    118,654.80/177,884.64 = 55,443.66/x
  3. Step 3: Cross multiply
    118,654.80x = 177,884.64 × 55,443.66
  4. Step 4: Simplify right side
    118,654.80x = 9,862,575,499.38
  5. Step 5: Solve for x
    x = 9,862,575,499.38/118,654.80
  6. Step 6: Final answer
    x = 83,119.90

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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.