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Finding the Fourth Proportional to 61,174.58, 91,744.25 and 16,802.78

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Solution

The fourth proportional to 61,174.58, 91,744.25 and 16,802.78 is: 25,199.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,174.58 : 91,744.25 = 16,802.78 : x
  2. Step 2: Convert to fraction form
    61,174.58/91,744.25 = 16,802.78/x
  3. Step 3: Cross multiply
    61,174.58x = 91,744.25 × 16,802.78
  4. Step 4: Simplify right side
    61,174.58x = 1,541,558,594.36
  5. Step 5: Solve for x
    x = 1,541,558,594.36/61,174.58
  6. Step 6: Final answer
    x = 25,199.33

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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.