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Finding the Fourth Proportional to 61,277.88, 91,469.67 and 52,568.76

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Solution

The fourth proportional to 61,277.88, 91,469.67 and 52,568.76 is: 78,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,277.88 : 91,469.67 = 52,568.76 : x
  2. Step 2: Convert to fraction form
    61,277.88/91,469.67 = 52,568.76/x
  3. Step 3: Cross multiply
    61,277.88x = 91,469.67 × 52,568.76
  4. Step 4: Simplify right side
    61,277.88x = 4,808,447,129.51
  5. Step 5: Solve for x
    x = 4,808,447,129.51/61,277.88
  6. Step 6: Final answer
    x = 78,469.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.