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Finding the Fourth Proportional to 88,582.98, 122,214 and 61,715.69

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Solution

The fourth proportional to 88,582.98, 122,214 and 61,715.69 is: 85,146.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,582.98 : 122,214 = 61,715.69 : x
  2. Step 2: Convert to fraction form
    88,582.98/122,214 = 61,715.69/x
  3. Step 3: Cross multiply
    88,582.98x = 122,214 × 61,715.69
  4. Step 4: Simplify right side
    88,582.98x = 7,542,520,726.59
  5. Step 5: Solve for x
    x = 7,542,520,726.59/88,582.98
  6. Step 6: Final answer
    x = 85,146.39

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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.