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Finding the Fourth Proportional to 88,422.66, 122,023.29 and 48,136.71

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Solution

The fourth proportional to 88,422.66, 122,023.29 and 48,136.71 is: 66,428.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,422.66 : 122,023.29 = 48,136.71 : x
  2. Step 2: Convert to fraction form
    88,422.66/122,023.29 = 48,136.71/x
  3. Step 3: Cross multiply
    88,422.66x = 122,023.29 × 48,136.71
  4. Step 4: Simplify right side
    88,422.66x = 5,873,799,723.98
  5. Step 5: Solve for x
    x = 5,873,799,723.98/88,422.66
  6. Step 6: Final answer
    x = 66,428.67

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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.