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Finding the Fourth Proportional to 220,147.20, 330,220.80 and 175,860.45

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Solution

The fourth proportional to 220,147.20, 330,220.80 and 175,860.45 is: 263,790.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,147.20 : 330,220.80 = 175,860.45 : x
  2. Step 2: Convert to fraction form
    220,147.20/330,220.80 = 175,860.45/x
  3. Step 3: Cross multiply
    220,147.20x = 330,220.80 × 175,860.45
  4. Step 4: Simplify right side
    220,147.20x = 58,072,778,487.36
  5. Step 5: Solve for x
    x = 58,072,778,487.36/220,147.20
  6. Step 6: Final answer
    x = 263,790.68

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1.5x scale

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.