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Finding the Fourth Proportional to 71,959.58, 108,050.09 and 64,135.59

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Solution

The fourth proportional to 71,959.58, 108,050.09 and 64,135.59 is: 96,302.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,959.58 : 108,050.09 = 64,135.59 : x
  2. Step 2: Convert to fraction form
    71,959.58/108,050.09 = 64,135.59/x
  3. Step 3: Cross multiply
    71,959.58x = 108,050.09 × 64,135.59
  4. Step 4: Simplify right side
    71,959.58x = 6,929,855,545.84
  5. Step 5: Solve for x
    x = 6,929,855,545.84/71,959.58
  6. Step 6: Final answer
    x = 96,302.06

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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.