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Finding the Fourth Proportional to 220,460.28, 330,527.64 and 70,613.88

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Solution

The fourth proportional to 220,460.28, 330,527.64 and 70,613.88 is: 105,868.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,460.28 : 330,527.64 = 70,613.88 : x
  2. Step 2: Convert to fraction form
    220,460.28/330,527.64 = 70,613.88/x
  3. Step 3: Cross multiply
    220,460.28x = 330,527.64 × 70,613.88
  4. Step 4: Simplify right side
    220,460.28x = 23,339,839,107.64
  5. Step 5: Solve for x
    x = 23,339,839,107.64/220,460.28
  6. Step 6: Final answer
    x = 105,868.68

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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.