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Finding the Fourth Proportional to 228,259.74, 315,007.72 and 126,283.44

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Solution

The fourth proportional to 228,259.74, 315,007.72 and 126,283.44 is: 174,276.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,259.74 : 315,007.72 = 126,283.44 : x
  2. Step 2: Convert to fraction form
    228,259.74/315,007.72 = 126,283.44/x
  3. Step 3: Cross multiply
    228,259.74x = 315,007.72 × 126,283.44
  4. Step 4: Simplify right side
    228,259.74x = 39,780,258,508.16
  5. Step 5: Solve for x
    x = 39,780,258,508.16/228,259.74
  6. Step 6: Final answer
    x = 174,276.28

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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.