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Finding the Fourth Proportional to 324,147.61, 486,222.59 and 99,508.06

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Solution

The fourth proportional to 324,147.61, 486,222.59 and 99,508.06 is: 149,262.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,147.61 : 486,222.59 = 99,508.06 : x
  2. Step 2: Convert to fraction form
    324,147.61/486,222.59 = 99,508.06/x
  3. Step 3: Cross multiply
    324,147.61x = 486,222.59 × 99,508.06
  4. Step 4: Simplify right side
    324,147.61x = 48,383,064,945.98
  5. Step 5: Solve for x
    x = 48,383,064,945.98/324,147.61
  6. Step 6: Final answer
    x = 149,262.44

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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.