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Finding the Fourth Proportional to 88,428.90, 122,034.08 and 48,144.88

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Solution

The fourth proportional to 88,428.90, 122,034.08 and 48,144.88 is: 66,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,428.90 : 122,034.08 = 48,144.88 : x
  2. Step 2: Convert to fraction form
    88,428.90/122,034.08 = 48,144.88/x
  3. Step 3: Cross multiply
    88,428.90x = 122,034.08 × 48,144.88
  4. Step 4: Simplify right side
    88,428.90x = 5,875,315,723.97
  5. Step 5: Solve for x
    x = 5,875,315,723.97/88,428.90
  6. Step 6: Final answer
    x = 66,441.12

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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.