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Finding the Fourth Proportional to 88,986, 122,800.66 and 48,699.78

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Solution

The fourth proportional to 88,986, 122,800.66 and 48,699.78 is: 67,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,986 : 122,800.66 = 48,699.78 : x
  2. Step 2: Convert to fraction form
    88,986/122,800.66 = 48,699.78/x
  3. Step 3: Cross multiply
    88,986x = 122,800.66 × 48,699.78
  4. Step 4: Simplify right side
    88,986x = 5,980,365,125.85
  5. Step 5: Solve for x
    x = 5,980,365,125.85/88,986
  6. Step 6: Final answer
    x = 67,205.69

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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.