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Finding the Fourth Proportional to 88,899.88, 122,628.54 and 58,685.80

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Solution

The fourth proportional to 88,899.88, 122,628.54 and 58,685.80 is: 80,951.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,899.88 : 122,628.54 = 58,685.80 : x
  2. Step 2: Convert to fraction form
    88,899.88/122,628.54 = 58,685.80/x
  3. Step 3: Cross multiply
    88,899.88x = 122,628.54 × 58,685.80
  4. Step 4: Simplify right side
    88,899.88x = 7,196,553,972.73
  5. Step 5: Solve for x
    x = 7,196,553,972.73/88,899.88
  6. Step 6: Final answer
    x = 80,951.22

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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.