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Finding the Fourth Proportional to 157,490.94, 236,372.88 and 82,663.92

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Solution

The fourth proportional to 157,490.94, 236,372.88 and 82,663.92 is: 124,067.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,490.94 : 236,372.88 = 82,663.92 : x
  2. Step 2: Convert to fraction form
    157,490.94/236,372.88 = 82,663.92/x
  3. Step 3: Cross multiply
    157,490.94x = 236,372.88 × 82,663.92
  4. Step 4: Simplify right side
    157,490.94x = 19,539,508,842.49
  5. Step 5: Solve for x
    x = 19,539,508,842.49/157,490.94
  6. Step 6: Final answer
    x = 124,067.51

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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.