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Finding the Fourth Proportional to 165,877.80, 248,853.15 and 53,538.90

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Solution

The fourth proportional to 165,877.80, 248,853.15 and 53,538.90 is: 80,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,877.80 : 248,853.15 = 53,538.90 : x
  2. Step 2: Convert to fraction form
    165,877.80/248,853.15 = 53,538.90/x
  3. Step 3: Cross multiply
    165,877.80x = 248,853.15 × 53,538.90
  4. Step 4: Simplify right side
    165,877.80x = 13,323,323,912.54
  5. Step 5: Solve for x
    x = 13,323,323,912.54/165,877.80
  6. Step 6: Final answer
    x = 80,320.11

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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.