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Finding the Fourth Proportional to 55,940.10, 83,910.15 and 51,663.30

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Solution

The fourth proportional to 55,940.10, 83,910.15 and 51,663.30 is: 77,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,940.10 : 83,910.15 = 51,663.30 : x
  2. Step 2: Convert to fraction form
    55,940.10/83,910.15 = 51,663.30/x
  3. Step 3: Cross multiply
    55,940.10x = 83,910.15 × 51,663.30
  4. Step 4: Simplify right side
    55,940.10x = 4,335,075,252.50
  5. Step 5: Solve for x
    x = 4,335,075,252.50/55,940.10
  6. Step 6: Final answer
    x = 77,494.95

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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.