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Finding the Fourth Proportional to 118,315.47, 177,560.69 and 43,482

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Solution

The fourth proportional to 118,315.47, 177,560.69 and 43,482 is: 65,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,315.47 : 177,560.69 = 43,482 : x
  2. Step 2: Convert to fraction form
    118,315.47/177,560.69 = 43,482/x
  3. Step 3: Cross multiply
    118,315.47x = 177,560.69 × 43,482
  4. Step 4: Simplify right side
    118,315.47x = 7,720,693,922.58
  5. Step 5: Solve for x
    x = 7,720,693,922.58/118,315.47
  6. Step 6: Final answer
    x = 65,255.15

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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.