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Finding the Fourth Proportional to 118,617.59, 177,926.38 and 48,480.50

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Solution

The fourth proportional to 118,617.59, 177,926.38 and 48,480.50 is: 72,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,617.59 : 177,926.38 = 48,480.50 : x
  2. Step 2: Convert to fraction form
    118,617.59/177,926.38 = 48,480.50/x
  3. Step 3: Cross multiply
    118,617.59x = 177,926.38 × 48,480.50
  4. Step 4: Simplify right side
    118,617.59x = 8,625,959,865.59
  5. Step 5: Solve for x
    x = 8,625,959,865.59/118,617.59
  6. Step 6: Final answer
    x = 72,720.75

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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.