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Finding the Fourth Proportional to 609,055.28, 913,517.16 and 159,820.88

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Solution

The fourth proportional to 609,055.28, 913,517.16 and 159,820.88 is: 239,714.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,055.28 : 913,517.16 = 159,820.88 : x
  2. Step 2: Convert to fraction form
    609,055.28/913,517.16 = 159,820.88/x
  3. Step 3: Cross multiply
    609,055.28x = 913,517.16 × 159,820.88
  4. Step 4: Simplify right side
    609,055.28x = 145,999,116,406.30
  5. Step 5: Solve for x
    x = 145,999,116,406.30/609,055.28
  6. Step 6: Final answer
    x = 239,714.06

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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.