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Finding the Fourth Proportional to 322,392.60, 483,685.56 and 130,168.08

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Solution

The fourth proportional to 322,392.60, 483,685.56 and 130,168.08 is: 195,291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,392.60 : 483,685.56 = 130,168.08 : x
  2. Step 2: Convert to fraction form
    322,392.60/483,685.56 = 130,168.08/x
  3. Step 3: Cross multiply
    322,392.60x = 483,685.56 × 130,168.08
  4. Step 4: Simplify right side
    322,392.60x = 62,960,420,668.92
  5. Step 5: Solve for x
    x = 62,960,420,668.92/322,392.60
  6. Step 6: Final answer
    x = 195,291.15

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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.