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Finding the Fourth Proportional to 239,712.30, 359,568.45 and 73,478.70

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Solution

The fourth proportional to 239,712.30, 359,568.45 and 73,478.70 is: 110,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,712.30 : 359,568.45 = 73,478.70 : x
  2. Step 2: Convert to fraction form
    239,712.30/359,568.45 = 73,478.70/x
  3. Step 3: Cross multiply
    239,712.30x = 359,568.45 × 73,478.70
  4. Step 4: Simplify right side
    239,712.30x = 26,420,622,267.02
  5. Step 5: Solve for x
    x = 26,420,622,267.02/239,712.30
  6. Step 6: Final answer
    x = 110,218.05

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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.