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Finding the Fourth Proportional to 220,567.75, 330,851.63 and 54,355.75

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Solution

The fourth proportional to 220,567.75, 330,851.63 and 54,355.75 is: 81,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,567.75 : 330,851.63 = 54,355.75 : x
  2. Step 2: Convert to fraction form
    220,567.75/330,851.63 = 54,355.75/x
  3. Step 3: Cross multiply
    220,567.75x = 330,851.63 × 54,355.75
  4. Step 4: Simplify right side
    220,567.75x = 17,983,688,487.37
  5. Step 5: Solve for x
    x = 17,983,688,487.37/220,567.75
  6. Step 6: Final answer
    x = 81,533.63

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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.