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Finding the Fourth Proportional to 291,727.72, 437,328.96 and 104,695.48

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Solution

The fourth proportional to 291,727.72, 437,328.96 and 104,695.48 is: 156,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,727.72 : 437,328.96 = 104,695.48 : x
  2. Step 2: Convert to fraction form
    291,727.72/437,328.96 = 104,695.48/x
  3. Step 3: Cross multiply
    291,727.72x = 437,328.96 × 104,695.48
  4. Step 4: Simplify right side
    291,727.72x = 45,786,365,385.10
  5. Step 5: Solve for x
    x = 45,786,365,385.10/291,727.72
  6. Step 6: Final answer
    x = 156,948.97

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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.