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Finding the Fourth Proportional to 220,580.69, 330,871.07 and 54,368.69

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Solution

The fourth proportional to 220,580.69, 330,871.07 and 54,368.69 is: 81,553.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,580.69 : 330,871.07 = 54,368.69 : x
  2. Step 2: Convert to fraction form
    220,580.69/330,871.07 = 54,368.69/x
  3. Step 3: Cross multiply
    220,580.69x = 330,871.07 × 54,368.69
  4. Step 4: Simplify right side
    220,580.69x = 17,989,026,634.80
  5. Step 5: Solve for x
    x = 17,989,026,634.80/220,580.69
  6. Step 6: Final answer
    x = 81,553.04

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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.