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Finding the Fourth Proportional to 118,080.28, 177,081.90 and 39,173.32

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Solution

The fourth proportional to 118,080.28, 177,081.90 and 39,173.32 is: 58,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,080.28 : 177,081.90 = 39,173.32 : x
  2. Step 2: Convert to fraction form
    118,080.28/177,081.90 = 39,173.32/x
  3. Step 3: Cross multiply
    118,080.28x = 177,081.90 × 39,173.32
  4. Step 4: Simplify right side
    118,080.28x = 6,936,885,934.91
  5. Step 5: Solve for x
    x = 6,936,885,934.91/118,080.28
  6. Step 6: Final answer
    x = 58,747.20

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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.