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Finding the Fourth Proportional to 254,387.76, 350,983.98 and 158,991.36

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Solution

The fourth proportional to 254,387.76, 350,983.98 and 158,991.36 is: 219,363.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,387.76 : 350,983.98 = 158,991.36 : x
  2. Step 2: Convert to fraction form
    254,387.76/350,983.98 = 158,991.36/x
  3. Step 3: Cross multiply
    254,387.76x = 350,983.98 × 158,991.36
  4. Step 4: Simplify right side
    254,387.76x = 55,803,420,318.41
  5. Step 5: Solve for x
    x = 55,803,420,318.41/254,387.76
  6. Step 6: Final answer
    x = 219,363.62

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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.