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Finding the Fourth Proportional to 378,253.64, 567,399.90 and 97,773.32

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Solution

The fourth proportional to 378,253.64, 567,399.90 and 97,773.32 is: 146,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,253.64 : 567,399.90 = 97,773.32 : x
  2. Step 2: Convert to fraction form
    378,253.64/567,399.90 = 97,773.32/x
  3. Step 3: Cross multiply
    378,253.64x = 567,399.90 × 97,773.32
  4. Step 4: Simplify right side
    378,253.64x = 55,476,571,990.67
  5. Step 5: Solve for x
    x = 55,476,571,990.67/378,253.64
  6. Step 6: Final answer
    x = 146,665.00

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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.