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Finding the Fourth Proportional to 75,101.60, 103,640.40 and 41,568.80

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Solution

The fourth proportional to 75,101.60, 103,640.40 and 41,568.80 is: 57,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,101.60 : 103,640.40 = 41,568.80 : x
  2. Step 2: Convert to fraction form
    75,101.60/103,640.40 = 41,568.80/x
  3. Step 3: Cross multiply
    75,101.60x = 103,640.40 × 41,568.80
  4. Step 4: Simplify right side
    75,101.60x = 4,308,207,059.52
  5. Step 5: Solve for x
    x = 4,308,207,059.52/75,101.60
  6. Step 6: Final answer
    x = 57,365.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.