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Finding the Fourth Proportional to 165,801.10, 248,640.90 and 53,510.80

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Solution

The fourth proportional to 165,801.10, 248,640.90 and 53,510.80 is: 80,246.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,801.10 : 248,640.90 = 53,510.80 : x
  2. Step 2: Convert to fraction form
    165,801.10/248,640.90 = 53,510.80/x
  3. Step 3: Cross multiply
    165,801.10x = 248,640.90 × 53,510.80
  4. Step 4: Simplify right side
    165,801.10x = 13,304,973,471.72
  5. Step 5: Solve for x
    x = 13,304,973,471.72/165,801.10
  6. Step 6: Final answer
    x = 80,246.59

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1.5x scale

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.