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Finding the Fourth Proportional to 367,430.70, 551,146.05 and 131,040.30

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Solution

The fourth proportional to 367,430.70, 551,146.05 and 131,040.30 is: 196,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,430.70 : 551,146.05 = 131,040.30 : x
  2. Step 2: Convert to fraction form
    367,430.70/551,146.05 = 131,040.30/x
  3. Step 3: Cross multiply
    367,430.70x = 551,146.05 × 131,040.30
  4. Step 4: Simplify right side
    367,430.70x = 72,222,343,735.82
  5. Step 5: Solve for x
    x = 72,222,343,735.82/367,430.70
  6. Step 6: Final answer
    x = 196,560.45

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Similar ratio
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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.