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Finding the Fourth Proportional to 375,453.72, 563,175.46 and 91,146.45

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Solution

The fourth proportional to 375,453.72, 563,175.46 and 91,146.45 is: 136,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,453.72 : 563,175.46 = 91,146.45 : x
  2. Step 2: Convert to fraction form
    375,453.72/563,175.46 = 91,146.45/x
  3. Step 3: Cross multiply
    375,453.72x = 563,175.46 × 91,146.45
  4. Step 4: Simplify right side
    375,453.72x = 51,331,443,906.12
  5. Step 5: Solve for x
    x = 51,331,443,906.12/375,453.72
  6. Step 6: Final answer
    x = 136,718.43

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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.