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Finding the Fourth Proportional to 291,695.52, 437,348.80 and 104,682.72

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Solution

The fourth proportional to 291,695.52, 437,348.80 and 104,682.72 is: 156,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,695.52 : 437,348.80 = 104,682.72 : x
  2. Step 2: Convert to fraction form
    291,695.52/437,348.80 = 104,682.72/x
  3. Step 3: Cross multiply
    291,695.52x = 437,348.80 × 104,682.72
  4. Step 4: Simplify right side
    291,695.52x = 45,782,861,972.74
  5. Step 5: Solve for x
    x = 45,782,861,972.74/291,695.52
  6. Step 6: Final answer
    x = 156,954.29

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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.