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Finding the Fourth Proportional to 88,687.86, 122,389.68 and 48,402.56

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Solution

The fourth proportional to 88,687.86, 122,389.68 and 48,402.56 is: 66,795.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,687.86 : 122,389.68 = 48,402.56 : x
  2. Step 2: Convert to fraction form
    88,687.86/122,389.68 = 48,402.56/x
  3. Step 3: Cross multiply
    88,687.86x = 122,389.68 × 48,402.56
  4. Step 4: Simplify right side
    88,687.86x = 5,923,974,317.06
  5. Step 5: Solve for x
    x = 5,923,974,317.06/88,687.86
  6. Step 6: Final answer
    x = 66,795.77

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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.