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Finding the Fourth Proportional to 75,765.78, 104,555.88 and 41,773.32

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Solution

The fourth proportional to 75,765.78, 104,555.88 and 41,773.32 is: 57,646.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,765.78 : 104,555.88 = 41,773.32 : x
  2. Step 2: Convert to fraction form
    75,765.78/104,555.88 = 41,773.32/x
  3. Step 3: Cross multiply
    75,765.78x = 104,555.88 × 41,773.32
  4. Step 4: Simplify right side
    75,765.78x = 4,367,646,233.12
  5. Step 5: Solve for x
    x = 4,367,646,233.12/75,765.78
  6. Step 6: Final answer
    x = 57,646.69

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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.