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Finding the Fourth Proportional to 61,115.94, 91,699.20 and 33,002.94

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Solution

The fourth proportional to 61,115.94, 91,699.20 and 33,002.94 is: 49,518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,115.94 : 91,699.20 = 33,002.94 : x
  2. Step 2: Convert to fraction form
    61,115.94/91,699.20 = 33,002.94/x
  3. Step 3: Cross multiply
    61,115.94x = 91,699.20 × 33,002.94
  4. Step 4: Simplify right side
    61,115.94x = 3,026,343,195.65
  5. Step 5: Solve for x
    x = 3,026,343,195.65/61,115.94
  6. Step 6: Final answer
    x = 49,518.07

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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.