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Finding the Fourth Proportional to 220,675.80, 330,915.54 and 62,868.60

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Solution

The fourth proportional to 220,675.80, 330,915.54 and 62,868.60 is: 94,274.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,675.80 : 330,915.54 = 62,868.60 : x
  2. Step 2: Convert to fraction form
    220,675.80/330,915.54 = 62,868.60/x
  3. Step 3: Cross multiply
    220,675.80x = 330,915.54 × 62,868.60
  4. Step 4: Simplify right side
    220,675.80x = 20,804,196,718.04
  5. Step 5: Solve for x
    x = 20,804,196,718.04/220,675.80
  6. Step 6: Final answer
    x = 94,274.94

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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.