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Finding the Fourth Proportional to 220,194.08, 303,871.92 and 124,700.48

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Solution

The fourth proportional to 220,194.08, 303,871.92 and 124,700.48 is: 172,088.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,194.08 : 303,871.92 = 124,700.48 : x
  2. Step 2: Convert to fraction form
    220,194.08/303,871.92 = 124,700.48/x
  3. Step 3: Cross multiply
    220,194.08x = 303,871.92 × 124,700.48
  4. Step 4: Simplify right side
    220,194.08x = 37,892,974,282.52
  5. Step 5: Solve for x
    x = 37,892,974,282.52/220,194.08
  6. Step 6: Final answer
    x = 172,088.98

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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.