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Finding the Fourth Proportional to 61,257.60, 91,713.60 and 59,529.60

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Solution

The fourth proportional to 61,257.60, 91,713.60 and 59,529.60 is: 89,126.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,257.60 : 91,713.60 = 59,529.60 : x
  2. Step 2: Convert to fraction form
    61,257.60/91,713.60 = 59,529.60/x
  3. Step 3: Cross multiply
    61,257.60x = 91,713.60 × 59,529.60
  4. Step 4: Simplify right side
    61,257.60x = 5,459,673,922.56
  5. Step 5: Solve for x
    x = 5,459,673,922.56/61,257.60
  6. Step 6: Final answer
    x = 89,126.47

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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.