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Finding the Fourth Proportional to 291,498.96, 437,277.48 and 81,136.92

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Solution

The fourth proportional to 291,498.96, 437,277.48 and 81,136.92 is: 121,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,498.96 : 437,277.48 = 81,136.92 : x
  2. Step 2: Convert to fraction form
    291,498.96/437,277.48 = 81,136.92/x
  3. Step 3: Cross multiply
    291,498.96x = 437,277.48 × 81,136.92
  4. Step 4: Simplify right side
    291,498.96x = 35,479,347,912.56
  5. Step 5: Solve for x
    x = 35,479,347,912.56/291,498.96
  6. Step 6: Final answer
    x = 121,713.46

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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.