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Finding the Fourth Proportional to 67,372.86, 101,042.03 and 19,976.86

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Solution

The fourth proportional to 67,372.86, 101,042.03 and 19,976.86 is: 29,960.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,372.86 : 101,042.03 = 19,976.86 : x
  2. Step 2: Convert to fraction form
    67,372.86/101,042.03 = 19,976.86/x
  3. Step 3: Cross multiply
    67,372.86x = 101,042.03 × 19,976.86
  4. Step 4: Simplify right side
    67,372.86x = 2,018,502,663.67
  5. Step 5: Solve for x
    x = 2,018,502,663.67/67,372.86
  6. Step 6: Final answer
    x = 29,960.17

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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.