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Finding the Fourth Proportional to 218,797.80, 328,252.05 and 61,026.24

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Solution

The fourth proportional to 218,797.80, 328,252.05 and 61,026.24 is: 91,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,797.80 : 328,252.05 = 61,026.24 : x
  2. Step 2: Convert to fraction form
    218,797.80/328,252.05 = 61,026.24/x
  3. Step 3: Cross multiply
    218,797.80x = 328,252.05 × 61,026.24
  4. Step 4: Simplify right side
    218,797.80x = 20,031,988,383.79
  5. Step 5: Solve for x
    x = 20,031,988,383.79/218,797.80
  6. Step 6: Final answer
    x = 91,554.80

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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.