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Finding the Fourth Proportional to 97,209.20, 145,878.60 and 44,591.60

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Solution

The fourth proportional to 97,209.20, 145,878.60 and 44,591.60 is: 66,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,209.20 : 145,878.60 = 44,591.60 : x
  2. Step 2: Convert to fraction form
    97,209.20/145,878.60 = 44,591.60/x
  3. Step 3: Cross multiply
    97,209.20x = 145,878.60 × 44,591.60
  4. Step 4: Simplify right side
    97,209.20x = 6,504,960,179.76
  5. Step 5: Solve for x
    x = 6,504,960,179.76/97,209.20
  6. Step 6: Final answer
    x = 66,917.12

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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.