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Finding the Fourth Proportional to 61,135.87, 91,697.66 and 16,767.09

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Solution

The fourth proportional to 61,135.87, 91,697.66 and 16,767.09 is: 25,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,135.87 : 91,697.66 = 16,767.09 : x
  2. Step 2: Convert to fraction form
    61,135.87/91,697.66 = 16,767.09/x
  3. Step 3: Cross multiply
    61,135.87x = 91,697.66 × 16,767.09
  4. Step 4: Simplify right side
    61,135.87x = 1,537,502,459.52
  5. Step 5: Solve for x
    x = 1,537,502,459.52/61,135.87
  6. Step 6: Final answer
    x = 25,148.94

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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.