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Finding the Fourth Proportional to 109,067.20, 163,514.40 and 59,819.20

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Solution

The fourth proportional to 109,067.20, 163,514.40 and 59,819.20 is: 89,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,067.20 : 163,514.40 = 59,819.20 : x
  2. Step 2: Convert to fraction form
    109,067.20/163,514.40 = 59,819.20/x
  3. Step 3: Cross multiply
    109,067.20x = 163,514.40 × 59,819.20
  4. Step 4: Simplify right side
    109,067.20x = 9,781,300,596.48
  5. Step 5: Solve for x
    x = 9,781,300,596.48/109,067.20
  6. Step 6: Final answer
    x = 89,681.41

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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.