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Finding the Fourth Proportional to 237,663.80, 354,653.02 and 212,425.82

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Solution

The fourth proportional to 237,663.80, 354,653.02 and 212,425.82 is: 316,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,663.80 : 354,653.02 = 212,425.82 : x
  2. Step 2: Convert to fraction form
    237,663.80/354,653.02 = 212,425.82/x
  3. Step 3: Cross multiply
    237,663.80x = 354,653.02 × 212,425.82
  4. Step 4: Simplify right side
    237,663.80x = 75,337,458,588.98
  5. Step 5: Solve for x
    x = 75,337,458,588.98/237,663.80
  6. Step 6: Final answer
    x = 316,991.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.