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Finding the Fourth Proportional to 79,871.40, 119,576.70 and 48,767.40

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Solution

The fourth proportional to 79,871.40, 119,576.70 and 48,767.40 is: 73,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,871.40 : 119,576.70 = 48,767.40 : x
  2. Step 2: Convert to fraction form
    79,871.40/119,576.70 = 48,767.40/x
  3. Step 3: Cross multiply
    79,871.40x = 119,576.70 × 48,767.40
  4. Step 4: Simplify right side
    79,871.40x = 5,831,444,759.58
  5. Step 5: Solve for x
    x = 5,831,444,759.58/79,871.40
  6. Step 6: Final answer
    x = 73,010.42

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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.