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Finding the Fourth Proportional to 172,215.86, 237,660.72 and 94,694.76

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Solution

The fourth proportional to 172,215.86, 237,660.72 and 94,694.76 is: 130,680.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,215.86 : 237,660.72 = 94,694.76 : x
  2. Step 2: Convert to fraction form
    172,215.86/237,660.72 = 94,694.76/x
  3. Step 3: Cross multiply
    172,215.86x = 237,660.72 × 94,694.76
  4. Step 4: Simplify right side
    172,215.86x = 22,505,224,841.83
  5. Step 5: Solve for x
    x = 22,505,224,841.83/172,215.86
  6. Step 6: Final answer
    x = 130,680.33

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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.