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Finding the Fourth Proportional to 108,943.92, 163,478.52 and 45,758.52

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Solution

The fourth proportional to 108,943.92, 163,478.52 and 45,758.52 is: 68,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,943.92 : 163,478.52 = 45,758.52 : x
  2. Step 2: Convert to fraction form
    108,943.92/163,478.52 = 45,758.52/x
  3. Step 3: Cross multiply
    108,943.92x = 163,478.52 × 45,758.52
  4. Step 4: Simplify right side
    108,943.92x = 7,480,535,126.99
  5. Step 5: Solve for x
    x = 7,480,535,126.99/108,943.92
  6. Step 6: Final answer
    x = 68,664.09

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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.