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Finding the Fourth Proportional to 367,426.80, 551,010.60 and 130,777.20

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Solution

The fourth proportional to 367,426.80, 551,010.60 and 130,777.20 is: 196,119.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,426.80 : 551,010.60 = 130,777.20 : x
  2. Step 2: Convert to fraction form
    367,426.80/551,010.60 = 130,777.20/x
  3. Step 3: Cross multiply
    367,426.80x = 551,010.60 × 130,777.20
  4. Step 4: Simplify right side
    367,426.80x = 72,059,623,438.32
  5. Step 5: Solve for x
    x = 72,059,623,438.32/367,426.80
  6. Step 6: Final answer
    x = 196,119.67

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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.