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Finding the Fourth Proportional to 88,815.90, 122,620.32 and 84,553.32

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Solution

The fourth proportional to 88,815.90, 122,620.32 and 84,553.32 is: 116,735.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,815.90 : 122,620.32 = 84,553.32 : x
  2. Step 2: Convert to fraction form
    88,815.90/122,620.32 = 84,553.32/x
  3. Step 3: Cross multiply
    88,815.90x = 122,620.32 × 84,553.32
  4. Step 4: Simplify right side
    88,815.90x = 10,367,955,155.46
  5. Step 5: Solve for x
    x = 10,367,955,155.46/88,815.90
  6. Step 6: Final answer
    x = 116,735.35

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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.