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Finding the Fourth Proportional to 108,871.52, 150,240.47 and 61,124.85

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Solution

The fourth proportional to 108,871.52, 150,240.47 and 61,124.85 is: 84,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,871.52 : 150,240.47 = 61,124.85 : x
  2. Step 2: Convert to fraction form
    108,871.52/150,240.47 = 61,124.85/x
  3. Step 3: Cross multiply
    108,871.52x = 150,240.47 × 61,124.85
  4. Step 4: Simplify right side
    108,871.52x = 9,183,425,887.06
  5. Step 5: Solve for x
    x = 9,183,425,887.06/108,871.52
  6. Step 6: Final answer
    x = 84,351.04

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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.