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Finding the Fourth Proportional to 375,464.56, 563,190.78 and 91,157.38

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Solution

The fourth proportional to 375,464.56, 563,190.78 and 91,157.38 is: 136,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,464.56 : 563,190.78 = 91,157.38 : x
  2. Step 2: Convert to fraction form
    375,464.56/563,190.78 = 91,157.38/x
  3. Step 3: Cross multiply
    375,464.56x = 563,190.78 × 91,157.38
  4. Step 4: Simplify right side
    375,464.56x = 51,338,995,944.96
  5. Step 5: Solve for x
    x = 51,338,995,944.96/375,464.56
  6. Step 6: Final answer
    x = 136,734.60

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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.