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Finding the Fourth Proportional to 156,696.92, 216,241.14 and 85,076.92

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Solution

The fourth proportional to 156,696.92, 216,241.14 and 85,076.92 is: 117,405.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,696.92 : 216,241.14 = 85,076.92 : x
  2. Step 2: Convert to fraction form
    156,696.92/216,241.14 = 85,076.92/x
  3. Step 3: Cross multiply
    156,696.92x = 216,241.14 × 85,076.92
  4. Step 4: Simplify right side
    156,696.92x = 18,397,130,168.49
  5. Step 5: Solve for x
    x = 18,397,130,168.49/156,696.92
  6. Step 6: Final answer
    x = 117,405.82

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1.5x scale

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.