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Finding the Fourth Proportional to 291,733.65, 437,633.31 and 91,994.94

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Solution

The fourth proportional to 291,733.65, 437,633.31 and 91,994.94 is: 138,002.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,733.65 : 437,633.31 = 91,994.94 : x
  2. Step 2: Convert to fraction form
    291,733.65/437,633.31 = 91,994.94/x
  3. Step 3: Cross multiply
    291,733.65x = 437,633.31 × 91,994.94
  4. Step 4: Simplify right side
    291,733.65x = 40,260,050,095.45
  5. Step 5: Solve for x
    x = 40,260,050,095.45/291,733.65
  6. Step 6: Final answer
    x = 138,002.76

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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.