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Finding the Fourth Proportional to 75,087.60, 103,621.08 and 41,554.80

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Solution

The fourth proportional to 75,087.60, 103,621.08 and 41,554.80 is: 57,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,087.60 : 103,621.08 = 41,554.80 : x
  2. Step 2: Convert to fraction form
    75,087.60/103,621.08 = 41,554.80/x
  3. Step 3: Cross multiply
    75,087.60x = 103,621.08 × 41,554.80
  4. Step 4: Simplify right side
    75,087.60x = 4,305,953,255.18
  5. Step 5: Solve for x
    x = 4,305,953,255.18/75,087.60
  6. Step 6: Final answer
    x = 57,345.73

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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.