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Finding the Fourth Proportional to 88,615.67, 122,284.76 and 50,369.90

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Solution

The fourth proportional to 88,615.67, 122,284.76 and 50,369.90 is: 69,507.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,615.67 : 122,284.76 = 50,369.90 : x
  2. Step 2: Convert to fraction form
    88,615.67/122,284.76 = 50,369.90/x
  3. Step 3: Cross multiply
    88,615.67x = 122,284.76 × 50,369.90
  4. Step 4: Simplify right side
    88,615.67x = 6,159,471,132.72
  5. Step 5: Solve for x
    x = 6,159,471,132.72/88,615.67
  6. Step 6: Final answer
    x = 69,507.70

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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.