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Finding the Fourth Proportional to 201,963.10, 302,944.65 and 131,460.70

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Solution

The fourth proportional to 201,963.10, 302,944.65 and 131,460.70 is: 197,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,963.10 : 302,944.65 = 131,460.70 : x
  2. Step 2: Convert to fraction form
    201,963.10/302,944.65 = 131,460.70/x
  3. Step 3: Cross multiply
    201,963.10x = 302,944.65 × 131,460.70
  4. Step 4: Simplify right side
    201,963.10x = 39,825,315,750.26
  5. Step 5: Solve for x
    x = 39,825,315,750.26/201,963.10
  6. Step 6: Final answer
    x = 197,191.05

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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.