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Finding the Fourth Proportional to 88,776.80, 122,511.17 and 48,490.55

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Solution

The fourth proportional to 88,776.80, 122,511.17 and 48,490.55 is: 66,916.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,776.80 : 122,511.17 = 48,490.55 : x
  2. Step 2: Convert to fraction form
    88,776.80/122,511.17 = 48,490.55/x
  3. Step 3: Cross multiply
    88,776.80x = 122,511.17 × 48,490.55
  4. Step 4: Simplify right side
    88,776.80x = 5,940,634,135.67
  5. Step 5: Solve for x
    x = 5,940,634,135.67/88,776.80
  6. Step 6: Final answer
    x = 66,916.52

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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.