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Finding the Fourth Proportional to 150,876.86, 208,123.45 and 94,189.82

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Solution

The fourth proportional to 150,876.86, 208,123.45 and 94,189.82 is: 129,927.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,876.86 : 208,123.45 = 94,189.82 : x
  2. Step 2: Convert to fraction form
    150,876.86/208,123.45 = 94,189.82/x
  3. Step 3: Cross multiply
    150,876.86x = 208,123.45 × 94,189.82
  4. Step 4: Simplify right side
    150,876.86x = 19,603,109,252.66
  5. Step 5: Solve for x
    x = 19,603,109,252.66/150,876.86
  6. Step 6: Final answer
    x = 129,927.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.