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Finding the Fourth Proportional to 228,573.99, 315,421.11 and 126,592.56

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Solution

The fourth proportional to 228,573.99, 315,421.11 and 126,592.56 is: 174,691.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,573.99 : 315,421.11 = 126,592.56 : x
  2. Step 2: Convert to fraction form
    228,573.99/315,421.11 = 126,592.56/x
  3. Step 3: Cross multiply
    228,573.99x = 315,421.11 × 126,592.56
  4. Step 4: Simplify right side
    228,573.99x = 39,929,965,792.94
  5. Step 5: Solve for x
    x = 39,929,965,792.94/228,573.99
  6. Step 6: Final answer
    x = 174,691.64

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1.5x scale

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.