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Finding the Fourth Proportional to 88,618.82, 122,224.82 and 56,790.68

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Solution

The fourth proportional to 88,618.82, 122,224.82 and 56,790.68 is: 78,326.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,618.82 : 122,224.82 = 56,790.68 : x
  2. Step 2: Convert to fraction form
    88,618.82/122,224.82 = 56,790.68/x
  3. Step 3: Cross multiply
    88,618.82x = 122,224.82 × 56,790.68
  4. Step 4: Simplify right side
    88,618.82x = 6,941,230,640.68
  5. Step 5: Solve for x
    x = 6,941,230,640.68/88,618.82
  6. Step 6: Final answer
    x = 78,326.82

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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.