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Finding the Fourth Proportional to 121,850.97, 182,779.59 and 57,794.15

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Solution

The fourth proportional to 121,850.97, 182,779.59 and 57,794.15 is: 86,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,850.97 : 182,779.59 = 57,794.15 : x
  2. Step 2: Convert to fraction form
    121,850.97/182,779.59 = 57,794.15/x
  3. Step 3: Cross multiply
    121,850.97x = 182,779.59 × 57,794.15
  4. Step 4: Simplify right side
    121,850.97x = 10,563,590,344.23
  5. Step 5: Solve for x
    x = 10,563,590,344.23/121,850.97
  6. Step 6: Final answer
    x = 86,692.71

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1.5x scale

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.