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Finding the Fourth Proportional to 266,433.68, 367,660.80 and 151,724

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Solution

The fourth proportional to 266,433.68, 367,660.80 and 151,724 is: 209,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,433.68 : 367,660.80 = 151,724 : x
  2. Step 2: Convert to fraction form
    266,433.68/367,660.80 = 151,724/x
  3. Step 3: Cross multiply
    266,433.68x = 367,660.80 × 151,724
  4. Step 4: Simplify right side
    266,433.68x = 55,782,967,219.20
  5. Step 5: Solve for x
    x = 55,782,967,219.20/266,433.68
  6. Step 6: Final answer
    x = 209,369.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.