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Finding the Fourth Proportional to 367,609.52, 551,525.03 and 130,921.40

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Solution

The fourth proportional to 367,609.52, 551,525.03 and 130,921.40 is: 196,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,609.52 : 551,525.03 = 130,921.40 : x
  2. Step 2: Convert to fraction form
    367,609.52/551,525.03 = 130,921.40/x
  3. Step 3: Cross multiply
    367,609.52x = 551,525.03 × 130,921.40
  4. Step 4: Simplify right side
    367,609.52x = 72,206,429,062.64
  5. Step 5: Solve for x
    x = 72,206,429,062.64/367,609.52
  6. Step 6: Final answer
    x = 196,421.54

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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.