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Finding the Fourth Proportional to 220,570.19, 330,855.28 and 54,358.19

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Solution

The fourth proportional to 220,570.19, 330,855.28 and 54,358.19 is: 81,537.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,570.19 : 330,855.28 = 54,358.19 : x
  2. Step 2: Convert to fraction form
    220,570.19/330,855.28 = 54,358.19/x
  3. Step 3: Cross multiply
    220,570.19x = 330,855.28 × 54,358.19
  4. Step 4: Simplify right side
    220,570.19x = 17,984,694,172.74
  5. Step 5: Solve for x
    x = 17,984,694,172.74/220,570.19
  6. Step 6: Final answer
    x = 81,537.28

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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.