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Finding the Fourth Proportional to 88,989.92, 122,850.56 and 51,256.88

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Solution

The fourth proportional to 88,989.92, 122,850.56 and 51,256.88 is: 70,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,989.92 : 122,850.56 = 51,256.88 : x
  2. Step 2: Convert to fraction form
    88,989.92/122,850.56 = 51,256.88/x
  3. Step 3: Cross multiply
    88,989.92x = 122,850.56 × 51,256.88
  4. Step 4: Simplify right side
    88,989.92x = 6,296,936,411.85
  5. Step 5: Solve for x
    x = 6,296,936,411.85/88,989.92
  6. Step 6: Final answer
    x = 70,760.11

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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.