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Finding the Fourth Proportional to 107,394.35, 161,078.99 and 28,514.70

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Solution

The fourth proportional to 107,394.35, 161,078.99 and 28,514.70 is: 42,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,394.35 : 161,078.99 = 28,514.70 : x
  2. Step 2: Convert to fraction form
    107,394.35/161,078.99 = 28,514.70/x
  3. Step 3: Cross multiply
    107,394.35x = 161,078.99 × 28,514.70
  4. Step 4: Simplify right side
    107,394.35x = 4,593,118,933.58
  5. Step 5: Solve for x
    x = 4,593,118,933.58/107,394.35
  6. Step 6: Final answer
    x = 42,768.72

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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.