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Finding the Fourth Proportional to 228,476.83, 315,300.52 and 126,504.15

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Solution

The fourth proportional to 228,476.83, 315,300.52 and 126,504.15 is: 174,577.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,476.83 : 315,300.52 = 126,504.15 : x
  2. Step 2: Convert to fraction form
    228,476.83/315,300.52 = 126,504.15/x
  3. Step 3: Cross multiply
    228,476.83x = 315,300.52 × 126,504.15
  4. Step 4: Simplify right side
    228,476.83x = 39,886,824,769.57
  5. Step 5: Solve for x
    x = 39,886,824,769.57/228,476.83
  6. Step 6: Final answer
    x = 174,577.11

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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.