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Finding the Fourth Proportional to 110,772.80, 166,051.20 and 63,339.20

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Solution

The fourth proportional to 110,772.80, 166,051.20 and 63,339.20 is: 94,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,772.80 : 166,051.20 = 63,339.20 : x
  2. Step 2: Convert to fraction form
    110,772.80/166,051.20 = 63,339.20/x
  3. Step 3: Cross multiply
    110,772.80x = 166,051.20 × 63,339.20
  4. Step 4: Simplify right side
    110,772.80x = 10,517,550,167.04
  5. Step 5: Solve for x
    x = 10,517,550,167.04/110,772.80
  6. Step 6: Final answer
    x = 94,947.05

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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.