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Finding the Fourth Proportional to 220,133.92, 303,723.12 and 124,638.52

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Solution

The fourth proportional to 220,133.92, 303,723.12 and 124,638.52 is: 171,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,133.92 : 303,723.12 = 124,638.52 : x
  2. Step 2: Convert to fraction form
    220,133.92/303,723.12 = 124,638.52/x
  3. Step 3: Cross multiply
    220,133.92x = 303,723.12 × 124,638.52
  4. Step 4: Simplify right side
    220,133.92x = 37,855,600,166.58
  5. Step 5: Solve for x
    x = 37,855,600,166.58/220,133.92
  6. Step 6: Final answer
    x = 171,966.23

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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.