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Finding the Fourth Proportional to 291,238.30, 436,857.45 and 113,751.10

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Solution

The fourth proportional to 291,238.30, 436,857.45 and 113,751.10 is: 170,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,238.30 : 436,857.45 = 113,751.10 : x
  2. Step 2: Convert to fraction form
    291,238.30/436,857.45 = 113,751.10/x
  3. Step 3: Cross multiply
    291,238.30x = 436,857.45 × 113,751.10
  4. Step 4: Simplify right side
    291,238.30x = 49,693,015,480.70
  5. Step 5: Solve for x
    x = 49,693,015,480.70/291,238.30
  6. Step 6: Final answer
    x = 170,626.65

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1.5x scale

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.