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Finding the Fourth Proportional to 61,020.60, 91,352.70 and 43,524.60

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Solution

The fourth proportional to 61,020.60, 91,352.70 and 43,524.60 is: 65,159.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,020.60 : 91,352.70 = 43,524.60 : x
  2. Step 2: Convert to fraction form
    61,020.60/91,352.70 = 43,524.60/x
  3. Step 3: Cross multiply
    61,020.60x = 91,352.70 × 43,524.60
  4. Step 4: Simplify right side
    61,020.60x = 3,976,089,726.42
  5. Step 5: Solve for x
    x = 3,976,089,726.42/61,020.60
  6. Step 6: Final answer
    x = 65,159.79

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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.