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Finding the Fourth Proportional to 375,418.41, 563,122.94 and 91,111.34

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Solution

The fourth proportional to 375,418.41, 563,122.94 and 91,111.34 is: 136,665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,418.41 : 563,122.94 = 91,111.34 : x
  2. Step 2: Convert to fraction form
    375,418.41/563,122.94 = 91,111.34/x
  3. Step 3: Cross multiply
    375,418.41x = 563,122.94 × 91,111.34
  4. Step 4: Simplify right side
    375,418.41x = 51,306,882,376.97
  5. Step 5: Solve for x
    x = 51,306,882,376.97/375,418.41
  6. Step 6: Final answer
    x = 136,665.87

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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.