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Finding the Fourth Proportional to 291,224.50, 436,836.39 and 91,562.32

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Solution

The fourth proportional to 291,224.50, 436,836.39 and 91,562.32 is: 137,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,224.50 : 436,836.39 = 91,562.32 : x
  2. Step 2: Convert to fraction form
    291,224.50/436,836.39 = 91,562.32/x
  3. Step 3: Cross multiply
    291,224.50x = 436,836.39 × 91,562.32
  4. Step 4: Simplify right side
    291,224.50x = 39,997,753,328.82
  5. Step 5: Solve for x
    x = 39,997,753,328.82/291,224.50
  6. Step 6: Final answer
    x = 137,343.37

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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.