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Finding the Fourth Proportional to 61,614.02, 84,821.64 and 58,792.80

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Solution

The fourth proportional to 61,614.02, 84,821.64 and 58,792.80 is: 80,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,614.02 : 84,821.64 = 58,792.80 : x
  2. Step 2: Convert to fraction form
    61,614.02/84,821.64 = 58,792.80/x
  3. Step 3: Cross multiply
    61,614.02x = 84,821.64 × 58,792.80
  4. Step 4: Simplify right side
    61,614.02x = 4,986,901,716.19
  5. Step 5: Solve for x
    x = 4,986,901,716.19/61,614.02
  6. Step 6: Final answer
    x = 80,937.78

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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.