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Finding the Fourth Proportional to 220,568.50, 330,852.75 and 54,356.50

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Solution

The fourth proportional to 220,568.50, 330,852.75 and 54,356.50 is: 81,534.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,568.50 : 330,852.75 = 54,356.50 : x
  2. Step 2: Convert to fraction form
    220,568.50/330,852.75 = 54,356.50/x
  3. Step 3: Cross multiply
    220,568.50x = 330,852.75 × 54,356.50
  4. Step 4: Simplify right side
    220,568.50x = 17,983,997,505.38
  5. Step 5: Solve for x
    x = 17,983,997,505.38/220,568.50
  6. Step 6: Final answer
    x = 81,534.75

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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.