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Finding the Fourth Proportional to 375,406.68, 563,105.26 and 91,099.56

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Solution

The fourth proportional to 375,406.68, 563,105.26 and 91,099.56 is: 136,648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,406.68 : 563,105.26 = 91,099.56 : x
  2. Step 2: Convert to fraction form
    375,406.68/563,105.26 = 91,099.56/x
  3. Step 3: Cross multiply
    375,406.68x = 563,105.26 × 91,099.56
  4. Step 4: Simplify right side
    375,406.68x = 51,298,641,419.69
  5. Step 5: Solve for x
    x = 51,298,641,419.69/375,406.68
  6. Step 6: Final answer
    x = 136,648.18

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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.