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Finding the Fourth Proportional to 61,161.90, 91,742.85 and 58,829.10

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Solution

The fourth proportional to 61,161.90, 91,742.85 and 58,829.10 is: 88,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,161.90 : 91,742.85 = 58,829.10 : x
  2. Step 2: Convert to fraction form
    61,161.90/91,742.85 = 58,829.10/x
  3. Step 3: Cross multiply
    61,161.90x = 91,742.85 × 58,829.10
  4. Step 4: Simplify right side
    61,161.90x = 5,397,149,296.94
  5. Step 5: Solve for x
    x = 5,397,149,296.94/61,161.90
  6. Step 6: Final answer
    x = 88,243.65

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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.