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Finding the Fourth Proportional to 108,525.20, 162,787.80 and 73,095.80

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Solution

The fourth proportional to 108,525.20, 162,787.80 and 73,095.80 is: 109,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,525.20 : 162,787.80 = 73,095.80 : x
  2. Step 2: Convert to fraction form
    108,525.20/162,787.80 = 73,095.80/x
  3. Step 3: Cross multiply
    108,525.20x = 162,787.80 × 73,095.80
  4. Step 4: Simplify right side
    108,525.20x = 11,899,104,471.24
  5. Step 5: Solve for x
    x = 11,899,104,471.24/108,525.20
  6. Step 6: Final answer
    x = 109,643.70

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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.