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Finding the Fourth Proportional to 228,594.15, 315,435.87 and 126,616.87

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Solution

The fourth proportional to 228,594.15, 315,435.87 and 126,616.87 is: 174,717.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,594.15 : 315,435.87 = 126,616.87 : x
  2. Step 2: Convert to fraction form
    228,594.15/315,435.87 = 126,616.87/x
  3. Step 3: Cross multiply
    228,594.15x = 315,435.87 × 126,616.87
  4. Step 4: Simplify right side
    228,594.15x = 39,939,502,939.42
  5. Step 5: Solve for x
    x = 39,939,502,939.42/228,594.15
  6. Step 6: Final answer
    x = 174,717.96

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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.