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Finding the Fourth Proportional to 228,751.28, 342,660.12 and 117,710

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Solution

The fourth proportional to 228,751.28, 342,660.12 and 117,710 is: 176,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,751.28 : 342,660.12 = 117,710 : x
  2. Step 2: Convert to fraction form
    228,751.28/342,660.12 = 117,710/x
  3. Step 3: Cross multiply
    228,751.28x = 342,660.12 × 117,710
  4. Step 4: Simplify right side
    228,751.28x = 40,334,522,725.20
  5. Step 5: Solve for x
    x = 40,334,522,725.20/228,751.28
  6. Step 6: Final answer
    x = 176,324.80

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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.