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Finding the Fourth Proportional to 251,816.88, 377,663.05 and 156,998.26

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Solution

The fourth proportional to 251,816.88, 377,663.05 and 156,998.26 is: 235,458.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,816.88 : 377,663.05 = 156,998.26 : x
  2. Step 2: Convert to fraction form
    251,816.88/377,663.05 = 156,998.26/x
  3. Step 3: Cross multiply
    251,816.88x = 377,663.05 × 156,998.26
  4. Step 4: Simplify right side
    251,816.88x = 59,292,440,504.41
  5. Step 5: Solve for x
    x = 59,292,440,504.41/251,816.88
  6. Step 6: Final answer
    x = 235,458.56

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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.