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Finding the Fourth Proportional to 228,623.65, 315,497.22 and 126,648.79

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Solution

The fourth proportional to 228,623.65, 315,497.22 and 126,648.79 is: 174,773.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,623.65 : 315,497.22 = 126,648.79 : x
  2. Step 2: Convert to fraction form
    228,623.65/315,497.22 = 126,648.79/x
  3. Step 3: Cross multiply
    228,623.65x = 315,497.22 × 126,648.79
  4. Step 4: Simplify right side
    228,623.65x = 39,957,341,161.36
  5. Step 5: Solve for x
    x = 39,957,341,161.36/228,623.65
  6. Step 6: Final answer
    x = 174,773.44

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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.