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Finding the Fourth Proportional to 88,722.73, 122,431.87 and 48,428.27

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Solution

The fourth proportional to 88,722.73, 122,431.87 and 48,428.27 is: 66,828.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,722.73 : 122,431.87 = 48,428.27 : x
  2. Step 2: Convert to fraction form
    88,722.73/122,431.87 = 48,428.27/x
  3. Step 3: Cross multiply
    88,722.73x = 122,431.87 × 48,428.27
  4. Step 4: Simplify right side
    88,722.73x = 5,929,163,656.96
  5. Step 5: Solve for x
    x = 5,929,163,656.96/88,722.73
  6. Step 6: Final answer
    x = 66,828.01

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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.