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Finding the Fourth Proportional to 228,566.99, 315,411.90 and 126,585.56

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Solution

The fourth proportional to 228,566.99, 315,411.90 and 126,585.56 is: 174,682.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,566.99 : 315,411.90 = 126,585.56 : x
  2. Step 2: Convert to fraction form
    228,566.99/315,411.90 = 126,585.56/x
  3. Step 3: Cross multiply
    228,566.99x = 315,411.90 × 126,585.56
  4. Step 4: Simplify right side
    228,566.99x = 39,926,591,992.16
  5. Step 5: Solve for x
    x = 39,926,591,992.16/228,566.99
  6. Step 6: Final answer
    x = 174,682.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.