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Finding the Fourth Proportional to 108,410.52, 162,610.76 and 28,446.51

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Solution

The fourth proportional to 108,410.52, 162,610.76 and 28,446.51 is: 42,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,410.52 : 162,610.76 = 28,446.51 : x
  2. Step 2: Convert to fraction form
    108,410.52/162,610.76 = 28,446.51/x
  3. Step 3: Cross multiply
    108,410.52x = 162,610.76 × 28,446.51
  4. Step 4: Simplify right side
    108,410.52x = 4,625,708,610.45
  5. Step 5: Solve for x
    x = 4,625,708,610.45/108,410.52
  6. Step 6: Final answer
    x = 42,668.45

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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.