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Finding the Fourth Proportional to 367,931.80, 551,606.10 and 201,719.80

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Solution

The fourth proportional to 367,931.80, 551,606.10 and 201,719.80 is: 302,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,931.80 : 551,606.10 = 201,719.80 : x
  2. Step 2: Convert to fraction form
    367,931.80/551,606.10 = 201,719.80/x
  3. Step 3: Cross multiply
    367,931.80x = 551,606.10 × 201,719.80
  4. Step 4: Simplify right side
    367,931.80x = 111,269,872,170.78
  5. Step 5: Solve for x
    x = 111,269,872,170.78/367,931.80
  6. Step 6: Final answer
    x = 302,419.83

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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.