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Finding the Fourth Proportional to 55,763.70, 83,700.95 and 43,418.77

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Solution

The fourth proportional to 55,763.70, 83,700.95 and 43,418.77 is: 65,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,763.70 : 83,700.95 = 43,418.77 : x
  2. Step 2: Convert to fraction form
    55,763.70/83,700.95 = 43,418.77/x
  3. Step 3: Cross multiply
    55,763.70x = 83,700.95 × 43,418.77
  4. Step 4: Simplify right side
    55,763.70x = 3,634,192,296.83
  5. Step 5: Solve for x
    x = 3,634,192,296.83/55,763.70
  6. Step 6: Final answer
    x = 65,171.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.