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Finding the Fourth Proportional to 113,737.44, 156,906.92 and 65,963.12

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Solution

The fourth proportional to 113,737.44, 156,906.92 and 65,963.12 is: 90,999.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,737.44 : 156,906.92 = 65,963.12 : x
  2. Step 2: Convert to fraction form
    113,737.44/156,906.92 = 65,963.12/x
  3. Step 3: Cross multiply
    113,737.44x = 156,906.92 × 65,963.12
  4. Step 4: Simplify right side
    113,737.44x = 10,350,069,992.79
  5. Step 5: Solve for x
    x = 10,350,069,992.79/113,737.44
  6. Step 6: Final answer
    x = 90,999.67

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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.