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Finding the Fourth Proportional to 71,973.15, 107,959.73 and 25,219.95

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Solution

The fourth proportional to 71,973.15, 107,959.73 and 25,219.95 is: 37,829.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.15 : 107,959.73 = 25,219.95 : x
  2. Step 2: Convert to fraction form
    71,973.15/107,959.73 = 25,219.95/x
  3. Step 3: Cross multiply
    71,973.15x = 107,959.73 × 25,219.95
  4. Step 4: Simplify right side
    71,973.15x = 2,722,738,866.51
  5. Step 5: Solve for x
    x = 2,722,738,866.51/71,973.15
  6. Step 6: Final answer
    x = 37,829.93

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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.