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Finding the Fourth Proportional to 88,371.58, 121,957.05 and 50,645.92

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Solution

The fourth proportional to 88,371.58, 121,957.05 and 50,645.92 is: 69,893.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,371.58 : 121,957.05 = 50,645.92 : x
  2. Step 2: Convert to fraction form
    88,371.58/121,957.05 = 50,645.92/x
  3. Step 3: Cross multiply
    88,371.58x = 121,957.05 × 50,645.92
  4. Step 4: Simplify right side
    88,371.58x = 6,176,626,997.74
  5. Step 5: Solve for x
    x = 6,176,626,997.74/88,371.58
  6. Step 6: Final answer
    x = 69,893.82

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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.