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Finding the Fourth Proportional to 88,956.89, 122,756.90 and 53,166.63

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Solution

The fourth proportional to 88,956.89, 122,756.90 and 53,166.63 is: 73,367.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,956.89 : 122,756.90 = 53,166.63 : x
  2. Step 2: Convert to fraction form
    88,956.89/122,756.90 = 53,166.63/x
  3. Step 3: Cross multiply
    88,956.89x = 122,756.90 × 53,166.63
  4. Step 4: Simplify right side
    88,956.89x = 6,526,570,416.41
  5. Step 5: Solve for x
    x = 6,526,570,416.41/88,956.89
  6. Step 6: Final answer
    x = 73,367.79

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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.