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Finding the Fourth Proportional to 324,580.62, 486,825.56 and 111,345.05

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Solution

The fourth proportional to 324,580.62, 486,825.56 and 111,345.05 is: 167,002.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,580.62 : 486,825.56 = 111,345.05 : x
  2. Step 2: Convert to fraction form
    324,580.62/486,825.56 = 111,345.05/x
  3. Step 3: Cross multiply
    324,580.62x = 486,825.56 × 111,345.05
  4. Step 4: Simplify right side
    324,580.62x = 54,205,616,319.48
  5. Step 5: Solve for x
    x = 54,205,616,319.48/324,580.62
  6. Step 6: Final answer
    x = 167,002.01

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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.