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Finding the Fourth Proportional to 103,273.99, 142,517.71 and 57,951.87

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Solution

The fourth proportional to 103,273.99, 142,517.71 and 57,951.87 is: 79,973.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,273.99 : 142,517.71 = 57,951.87 : x
  2. Step 2: Convert to fraction form
    103,273.99/142,517.71 = 57,951.87/x
  3. Step 3: Cross multiply
    103,273.99x = 142,517.71 × 57,951.87
  4. Step 4: Simplify right side
    103,273.99x = 8,259,167,802.62
  5. Step 5: Solve for x
    x = 8,259,167,802.62/103,273.99
  6. Step 6: Final answer
    x = 79,973.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.