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Finding the Fourth Proportional to 207,241.70, 285,993.53 and 117,817.70

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Solution

The fourth proportional to 207,241.70, 285,993.53 and 117,817.70 is: 162,588.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,241.70 : 285,993.53 = 117,817.70 : x
  2. Step 2: Convert to fraction form
    207,241.70/285,993.53 = 117,817.70/x
  3. Step 3: Cross multiply
    207,241.70x = 285,993.53 × 117,817.70
  4. Step 4: Simplify right side
    207,241.70x = 33,695,097,900.42
  5. Step 5: Solve for x
    x = 33,695,097,900.42/207,241.70
  6. Step 6: Final answer
    x = 162,588.41

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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.