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Finding the Fourth Proportional to 291,359.54, 436,997.78 and 91,674.74

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Solution

The fourth proportional to 291,359.54, 436,997.78 and 91,674.74 is: 137,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,359.54 : 436,997.78 = 91,674.74 : x
  2. Step 2: Convert to fraction form
    291,359.54/436,997.78 = 91,674.74/x
  3. Step 3: Cross multiply
    291,359.54x = 436,997.78 × 91,674.74
  4. Step 4: Simplify right side
    291,359.54x = 40,061,655,218.71
  5. Step 5: Solve for x
    x = 40,061,655,218.71/291,359.54
  6. Step 6: Final answer
    x = 137,499.04

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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.