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Finding the Fourth Proportional to 220,057.55, 330,103.94 and 70,318.92

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Solution

The fourth proportional to 220,057.55, 330,103.94 and 70,318.92 is: 105,484.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,057.55 : 330,103.94 = 70,318.92 : x
  2. Step 2: Convert to fraction form
    220,057.55/330,103.94 = 70,318.92/x
  3. Step 3: Cross multiply
    220,057.55x = 330,103.94 × 70,318.92
  4. Step 4: Simplify right side
    220,057.55x = 23,212,552,548.54
  5. Step 5: Solve for x
    x = 23,212,552,548.54/220,057.55
  6. Step 6: Final answer
    x = 105,484.01

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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.