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Finding the Fourth Proportional to 61,239.88, 84,515.22 and 34,019.16

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Solution

The fourth proportional to 61,239.88, 84,515.22 and 34,019.16 is: 46,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239.88 : 84,515.22 = 34,019.16 : x
  2. Step 2: Convert to fraction form
    61,239.88/84,515.22 = 34,019.16/x
  3. Step 3: Cross multiply
    61,239.88x = 84,515.22 × 34,019.16
  4. Step 4: Simplify right side
    61,239.88x = 2,875,136,791.62
  5. Step 5: Solve for x
    x = 2,875,136,791.62/61,239.88
  6. Step 6: Final answer
    x = 46,948.77

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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.