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Finding the Fourth Proportional to 118,934.60, 178,250.70 and 48,734.60

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Solution

The fourth proportional to 118,934.60, 178,250.70 and 48,734.60 is: 73,039.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,934.60 : 178,250.70 = 48,734.60 : x
  2. Step 2: Convert to fraction form
    118,934.60/178,250.70 = 48,734.60/x
  3. Step 3: Cross multiply
    118,934.60x = 178,250.70 × 48,734.60
  4. Step 4: Simplify right side
    118,934.60x = 8,686,976,564.22
  5. Step 5: Solve for x
    x = 8,686,976,564.22/118,934.60
  6. Step 6: Final answer
    x = 73,039.94

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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.