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Finding the Fourth Proportional to 220,349.62, 303,970.56 and 143,913.46

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Solution

The fourth proportional to 220,349.62, 303,970.56 and 143,913.46 is: 198,527.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,349.62 : 303,970.56 = 143,913.46 : x
  2. Step 2: Convert to fraction form
    220,349.62/303,970.56 = 143,913.46/x
  3. Step 3: Cross multiply
    220,349.62x = 303,970.56 × 143,913.46
  4. Step 4: Simplify right side
    220,349.62x = 43,745,453,507.88
  5. Step 5: Solve for x
    x = 43,745,453,507.88/220,349.62
  6. Step 6: Final answer
    x = 198,527.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.