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Finding the Fourth Proportional to 300,888.61, 451,355.19 and 101,208.22

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Solution

The fourth proportional to 300,888.61, 451,355.19 and 101,208.22 is: 151,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,888.61 : 451,355.19 = 101,208.22 : x
  2. Step 2: Convert to fraction form
    300,888.61/451,355.19 = 101,208.22/x
  3. Step 3: Cross multiply
    300,888.61x = 451,355.19 × 101,208.22
  4. Step 4: Simplify right side
    300,888.61x = 45,680,853,859.74
  5. Step 5: Solve for x
    x = 45,680,853,859.74/300,888.61
  6. Step 6: Final answer
    x = 151,819.82

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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.