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Finding the Fourth Proportional to 91,263.60, 136,788.48 and 41,285.52

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Solution

The fourth proportional to 91,263.60, 136,788.48 and 41,285.52 is: 61,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,263.60 : 136,788.48 = 41,285.52 : x
  2. Step 2: Convert to fraction form
    91,263.60/136,788.48 = 41,285.52/x
  3. Step 3: Cross multiply
    91,263.60x = 136,788.48 × 41,285.52
  4. Step 4: Simplify right side
    91,263.60x = 5,647,383,526.81
  5. Step 5: Solve for x
    x = 5,647,383,526.81/91,263.60
  6. Step 6: Final answer
    x = 61,879.91

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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.