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Finding the Fourth Proportional to 88,644.78, 122,317.70 and 50,919.03

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Solution

The fourth proportional to 88,644.78, 122,317.70 and 50,919.03 is: 70,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,644.78 : 122,317.70 = 50,919.03 : x
  2. Step 2: Convert to fraction form
    88,644.78/122,317.70 = 50,919.03/x
  3. Step 3: Cross multiply
    88,644.78x = 122,317.70 × 50,919.03
  4. Step 4: Simplify right side
    88,644.78x = 6,228,298,381.24
  5. Step 5: Solve for x
    x = 6,228,298,381.24/88,644.78
  6. Step 6: Final answer
    x = 70,261.31

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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.