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Finding the Fourth Proportional to 220,859.61, 330,634.94 and 136,348.04

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Solution

The fourth proportional to 220,859.61, 330,634.94 and 136,348.04 is: 204,118.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,859.61 : 330,634.94 = 136,348.04 : x
  2. Step 2: Convert to fraction form
    220,859.61/330,634.94 = 136,348.04/x
  3. Step 3: Cross multiply
    220,859.61x = 330,634.94 × 136,348.04
  4. Step 4: Simplify right side
    220,859.61x = 45,081,423,689.60
  5. Step 5: Solve for x
    x = 45,081,423,689.60/220,859.61
  6. Step 6: Final answer
    x = 204,118.01

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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.