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Finding the Fourth Proportional to 228,725.20, 343,087.80 and 62,513.20

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Solution

The fourth proportional to 228,725.20, 343,087.80 and 62,513.20 is: 93,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,725.20 : 343,087.80 = 62,513.20 : x
  2. Step 2: Convert to fraction form
    228,725.20/343,087.80 = 62,513.20/x
  3. Step 3: Cross multiply
    228,725.20x = 343,087.80 × 62,513.20
  4. Step 4: Simplify right side
    228,725.20x = 21,447,516,258.96
  5. Step 5: Solve for x
    x = 21,447,516,258.96/228,725.20
  6. Step 6: Final answer
    x = 93,769.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.