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Finding the Fourth Proportional to 118,672.68, 178,106.28 and 48,552.60

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Solution

The fourth proportional to 118,672.68, 178,106.28 and 48,552.60 is: 72,868.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,672.68 : 178,106.28 = 48,552.60 : x
  2. Step 2: Convert to fraction form
    118,672.68/178,106.28 = 48,552.60/x
  3. Step 3: Cross multiply
    118,672.68x = 178,106.28 × 48,552.60
  4. Step 4: Simplify right side
    118,672.68x = 8,647,522,970.33
  5. Step 5: Solve for x
    x = 8,647,522,970.33/118,672.68
  6. Step 6: Final answer
    x = 72,868.69

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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.