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Finding the Fourth Proportional to 357,467.87, 536,201.49 and 91,228.37

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Solution

The fourth proportional to 357,467.87, 536,201.49 and 91,228.37 is: 136,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,467.87 : 536,201.49 = 91,228.37 : x
  2. Step 2: Convert to fraction form
    357,467.87/536,201.49 = 91,228.37/x
  3. Step 3: Cross multiply
    357,467.87x = 536,201.49 × 91,228.37
  4. Step 4: Simplify right side
    357,467.87x = 48,916,785,243.26
  5. Step 5: Solve for x
    x = 48,916,785,243.26/357,467.87
  6. Step 6: Final answer
    x = 136,842.47

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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.