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Finding the Fourth Proportional to 159,751.40, 239,627.10 and 48,943.40

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Solution

The fourth proportional to 159,751.40, 239,627.10 and 48,943.40 is: 73,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,751.40 : 239,627.10 = 48,943.40 : x
  2. Step 2: Convert to fraction form
    159,751.40/239,627.10 = 48,943.40/x
  3. Step 3: Cross multiply
    159,751.40x = 239,627.10 × 48,943.40
  4. Step 4: Simplify right side
    159,751.40x = 11,728,165,006.14
  5. Step 5: Solve for x
    x = 11,728,165,006.14/159,751.40
  6. Step 6: Final answer
    x = 73,415.10

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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.