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Finding the Fourth Proportional to 220,552.80, 330,829.20 and 62,786.40

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Solution

The fourth proportional to 220,552.80, 330,829.20 and 62,786.40 is: 94,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,552.80 : 330,829.20 = 62,786.40 : x
  2. Step 2: Convert to fraction form
    220,552.80/330,829.20 = 62,786.40/x
  3. Step 3: Cross multiply
    220,552.80x = 330,829.20 × 62,786.40
  4. Step 4: Simplify right side
    220,552.80x = 20,771,574,482.88
  5. Step 5: Solve for x
    x = 20,771,574,482.88/220,552.80
  6. Step 6: Final answer
    x = 94,179.60

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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.