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Finding the Fourth Proportional to 375,717.80, 563,568.93 and 91,409.85

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Solution

The fourth proportional to 375,717.80, 563,568.93 and 91,409.85 is: 137,112.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,717.80 : 563,568.93 = 91,409.85 : x
  2. Step 2: Convert to fraction form
    375,717.80/563,568.93 = 91,409.85/x
  3. Step 3: Cross multiply
    375,717.80x = 563,568.93 × 91,409.85
  4. Step 4: Simplify right side
    375,717.80x = 51,515,751,355.96
  5. Step 5: Solve for x
    x = 51,515,751,355.96/375,717.80
  6. Step 6: Final answer
    x = 137,112.88

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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.