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Finding the Fourth Proportional to 118,883.43, 178,352.46 and 39,995.55

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Solution

The fourth proportional to 118,883.43, 178,352.46 and 39,995.55 is: 60,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,883.43 : 178,352.46 = 39,995.55 : x
  2. Step 2: Convert to fraction form
    118,883.43/178,352.46 = 39,995.55/x
  3. Step 3: Cross multiply
    118,883.43x = 178,352.46 × 39,995.55
  4. Step 4: Simplify right side
    118,883.43x = 7,133,304,731.55
  5. Step 5: Solve for x
    x = 7,133,304,731.55/118,883.43
  6. Step 6: Final answer
    x = 60,002.51

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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.