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Finding the Fourth Proportional to 62,218.71, 85,174.90 and 61,774.02

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Solution

The fourth proportional to 62,218.71, 85,174.90 and 61,774.02 is: 84,566.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,218.71 : 85,174.90 = 61,774.02 : x
  2. Step 2: Convert to fraction form
    62,218.71/85,174.90 = 61,774.02/x
  3. Step 3: Cross multiply
    62,218.71x = 85,174.90 × 61,774.02
  4. Step 4: Simplify right side
    62,218.71x = 5,261,595,821.66
  5. Step 5: Solve for x
    x = 5,261,595,821.66/62,218.71
  6. Step 6: Final answer
    x = 84,566.13

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.