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Finding the Fourth Proportional to 291,416.36, 437,104.45 and 179,113.91

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Solution

The fourth proportional to 291,416.36, 437,104.45 and 179,113.91 is: 268,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,416.36 : 437,104.45 = 179,113.91 : x
  2. Step 2: Convert to fraction form
    291,416.36/437,104.45 = 179,113.91/x
  3. Step 3: Cross multiply
    291,416.36x = 437,104.45 × 179,113.91
  4. Step 4: Simplify right side
    291,416.36x = 78,291,485,156.27
  5. Step 5: Solve for x
    x = 78,291,485,156.27/291,416.36
  6. Step 6: Final answer
    x = 268,658.51

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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.