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Finding the Fourth Proportional to 367,460.80, 551,061.60 and 130,811.20

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Solution

The fourth proportional to 367,460.80, 551,061.60 and 130,811.20 is: 196,170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,460.80 : 551,061.60 = 130,811.20 : x
  2. Step 2: Convert to fraction form
    367,460.80/551,061.60 = 130,811.20/x
  3. Step 3: Cross multiply
    367,460.80x = 551,061.60 × 130,811.20
  4. Step 4: Simplify right side
    367,460.80x = 72,085,029,169.92
  5. Step 5: Solve for x
    x = 72,085,029,169.92/367,460.80
  6. Step 6: Final answer
    x = 196,170.66

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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.