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Finding the Fourth Proportional to 324,148.11, 486,204.59 and 99,508.59

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Solution

The fourth proportional to 324,148.11, 486,204.59 and 99,508.59 is: 149,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,148.11 : 486,204.59 = 99,508.59 : x
  2. Step 2: Convert to fraction form
    324,148.11/486,204.59 = 99,508.59/x
  3. Step 3: Cross multiply
    324,148.11x = 486,204.59 × 99,508.59
  4. Step 4: Simplify right side
    324,148.11x = 48,381,533,202.43
  5. Step 5: Solve for x
    x = 48,381,533,202.43/324,148.11
  6. Step 6: Final answer
    x = 149,257.49

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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.