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Finding the Fourth Proportional to 375,753.58, 563,704.26 and 139,098.31

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Solution

The fourth proportional to 375,753.58, 563,704.26 and 139,098.31 is: 208,674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,753.58 : 563,704.26 = 139,098.31 : x
  2. Step 2: Convert to fraction form
    375,753.58/563,704.26 = 139,098.31/x
  3. Step 3: Cross multiply
    375,753.58x = 563,704.26 × 139,098.31
  4. Step 4: Simplify right side
    375,753.58x = 78,410,309,905.80
  5. Step 5: Solve for x
    x = 78,410,309,905.80/375,753.58
  6. Step 6: Final answer
    x = 208,674.82

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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.