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Finding the Fourth Proportional to 75,287.54, 103,944.65 and 67,207.03

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Solution

The fourth proportional to 75,287.54, 103,944.65 and 67,207.03 is: 92,788.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,287.54 : 103,944.65 = 67,207.03 : x
  2. Step 2: Convert to fraction form
    75,287.54/103,944.65 = 67,207.03/x
  3. Step 3: Cross multiply
    75,287.54x = 103,944.65 × 67,207.03
  4. Step 4: Simplify right side
    75,287.54x = 6,985,810,993.03
  5. Step 5: Solve for x
    x = 6,985,810,993.03/75,287.54
  6. Step 6: Final answer
    x = 92,788.41

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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.