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Finding the Fourth Proportional to 375,452.72, 563,173.97 and 91,145.45

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Solution

The fourth proportional to 375,452.72, 563,173.97 and 91,145.45 is: 136,716.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,452.72 : 563,173.97 = 91,145.45 : x
  2. Step 2: Convert to fraction form
    375,452.72/563,173.97 = 91,145.45/x
  3. Step 3: Cross multiply
    375,452.72x = 563,173.97 × 91,145.45
  4. Step 4: Simplify right side
    375,452.72x = 51,330,745,876.14
  5. Step 5: Solve for x
    x = 51,330,745,876.14/375,452.72
  6. Step 6: Final answer
    x = 136,716.94

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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.