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Finding the Fourth Proportional to 201,895.90, 302,843.85 and 131,037.10

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Solution

The fourth proportional to 201,895.90, 302,843.85 and 131,037.10 is: 196,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,895.90 : 302,843.85 = 131,037.10 : x
  2. Step 2: Convert to fraction form
    201,895.90/302,843.85 = 131,037.10/x
  3. Step 3: Cross multiply
    201,895.90x = 302,843.85 × 131,037.10
  4. Step 4: Simplify right side
    201,895.90x = 39,683,779,856.84
  5. Step 5: Solve for x
    x = 39,683,779,856.84/201,895.90
  6. Step 6: Final answer
    x = 196,555.65

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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.