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Finding the Fourth Proportional to 88,728.30, 122,443.11 and 48,440.52

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Solution

The fourth proportional to 88,728.30, 122,443.11 and 48,440.52 is: 66,846.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,728.30 : 122,443.11 = 48,440.52 : x
  2. Step 2: Convert to fraction form
    88,728.30/122,443.11 = 48,440.52/x
  3. Step 3: Cross multiply
    88,728.30x = 122,443.11 × 48,440.52
  4. Step 4: Simplify right side
    88,728.30x = 5,931,207,918.82
  5. Step 5: Solve for x
    x = 5,931,207,918.82/88,728.30
  6. Step 6: Final answer
    x = 66,846.86

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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.