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Finding the Fourth Proportional to 114,607.86, 172,105.66 and 74,694.66

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Solution

The fourth proportional to 114,607.86, 172,105.66 and 74,694.66 is: 112,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,607.86 : 172,105.66 = 74,694.66 : x
  2. Step 2: Convert to fraction form
    114,607.86/172,105.66 = 74,694.66/x
  3. Step 3: Cross multiply
    114,607.86x = 172,105.66 × 74,694.66
  4. Step 4: Simplify right side
    114,607.86x = 12,855,373,757.78
  5. Step 5: Solve for x
    x = 12,855,373,757.78/114,607.86
  6. Step 6: Final answer
    x = 112,168.34

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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.