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Finding the Fourth Proportional to 228,685.34, 343,342.21 and 116,440.97

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Solution

The fourth proportional to 228,685.34, 343,342.21 and 116,440.97 is: 174,821.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,685.34 : 343,342.21 = 116,440.97 : x
  2. Step 2: Convert to fraction form
    228,685.34/343,342.21 = 116,440.97/x
  3. Step 3: Cross multiply
    228,685.34x = 343,342.21 × 116,440.97
  4. Step 4: Simplify right side
    228,685.34x = 39,979,100,541.60
  5. Step 5: Solve for x
    x = 39,979,100,541.60/228,685.34
  6. Step 6: Final answer
    x = 174,821.44

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1.5x scale

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.