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Finding the Fourth Proportional to 88,435, 122,040.42 and 48,691

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Solution

The fourth proportional to 88,435, 122,040.42 and 48,691 is: 67,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,435 : 122,040.42 = 48,691 : x
  2. Step 2: Convert to fraction form
    88,435/122,040.42 = 48,691/x
  3. Step 3: Cross multiply
    88,435x = 122,040.42 × 48,691
  4. Step 4: Simplify right side
    88,435x = 5,942,270,090.22
  5. Step 5: Solve for x
    x = 5,942,270,090.22/88,435
  6. Step 6: Final answer
    x = 67,193.65

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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.