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Finding the Fourth Proportional to 291,525.44, 437,280.48 and 81,177.92

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Solution

The fourth proportional to 291,525.44, 437,280.48 and 81,177.92 is: 121,764.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,525.44 : 437,280.48 = 81,177.92 : x
  2. Step 2: Convert to fraction form
    291,525.44/437,280.48 = 81,177.92/x
  3. Step 3: Cross multiply
    291,525.44x = 437,280.48 × 81,177.92
  4. Step 4: Simplify right side
    291,525.44x = 35,497,519,823.00
  5. Step 5: Solve for x
    x = 35,497,519,823.00/291,525.44
  6. Step 6: Final answer
    x = 121,764.74

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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.