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Finding the Fourth Proportional to 289,202.47, 399,103.49 and 166,627.11

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Solution

The fourth proportional to 289,202.47, 399,103.49 and 166,627.11 is: 229,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,202.47 : 399,103.49 = 166,627.11 : x
  2. Step 2: Convert to fraction form
    289,202.47/399,103.49 = 166,627.11/x
  3. Step 3: Cross multiply
    289,202.47x = 399,103.49 × 166,627.11
  4. Step 4: Simplify right side
    289,202.47x = 66,501,459,860.59
  5. Step 5: Solve for x
    x = 66,501,459,860.59/289,202.47
  6. Step 6: Final answer
    x = 229,947.76

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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.