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Finding the Fourth Proportional to 162,080.33, 243,067.91 and 53,980.92

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Solution

The fourth proportional to 162,080.33, 243,067.91 and 53,980.92 is: 80,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,080.33 : 243,067.91 = 53,980.92 : x
  2. Step 2: Convert to fraction form
    162,080.33/243,067.91 = 53,980.92/x
  3. Step 3: Cross multiply
    162,080.33x = 243,067.91 × 53,980.92
  4. Step 4: Simplify right side
    162,080.33x = 13,121,029,404.28
  5. Step 5: Solve for x
    x = 13,121,029,404.28/162,080.33
  6. Step 6: Final answer
    x = 80,953.87

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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.