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Finding the Fourth Proportional to 375,520.71, 563,273.11 and 91,212.58

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Solution

The fourth proportional to 375,520.71, 563,273.11 and 91,212.58 is: 136,816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,520.71 : 563,273.11 = 91,212.58 : x
  2. Step 2: Convert to fraction form
    375,520.71/563,273.11 = 91,212.58/x
  3. Step 3: Cross multiply
    375,520.71x = 563,273.11 × 91,212.58
  4. Step 4: Simplify right side
    375,520.71x = 51,377,594,682.37
  5. Step 5: Solve for x
    x = 51,377,594,682.37/375,520.71
  6. Step 6: Final answer
    x = 136,816.94

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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.