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Finding the Fourth Proportional to 61,032.60, 91,370.70 and 43,536.60

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Solution

The fourth proportional to 61,032.60, 91,370.70 and 43,536.60 is: 65,177.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,032.60 : 91,370.70 = 43,536.60 : x
  2. Step 2: Convert to fraction form
    61,032.60/91,370.70 = 43,536.60/x
  3. Step 3: Cross multiply
    61,032.60x = 91,370.70 × 43,536.60
  4. Step 4: Simplify right side
    61,032.60x = 3,977,969,617.62
  5. Step 5: Solve for x
    x = 3,977,969,617.62/61,032.60
  6. Step 6: Final answer
    x = 65,177.78

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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.