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Finding the Fourth Proportional to 159,175.46, 219,693.30 and 91,237.98

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Solution

The fourth proportional to 159,175.46, 219,693.30 and 91,237.98 is: 125,926.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,175.46 : 219,693.30 = 91,237.98 : x
  2. Step 2: Convert to fraction form
    159,175.46/219,693.30 = 91,237.98/x
  3. Step 3: Cross multiply
    159,175.46x = 219,693.30 × 91,237.98
  4. Step 4: Simplify right side
    159,175.46x = 20,044,372,911.53
  5. Step 5: Solve for x
    x = 20,044,372,911.53/159,175.46
  6. Step 6: Final answer
    x = 125,926.28

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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.