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Finding the Fourth Proportional to 115,956.65, 173,940.21 and 31,714.92

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Solution

The fourth proportional to 115,956.65, 173,940.21 and 31,714.92 is: 47,573.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,956.65 : 173,940.21 = 31,714.92 : x
  2. Step 2: Convert to fraction form
    115,956.65/173,940.21 = 31,714.92/x
  3. Step 3: Cross multiply
    115,956.65x = 173,940.21 × 31,714.92
  4. Step 4: Simplify right side
    115,956.65x = 5,516,499,844.93
  5. Step 5: Solve for x
    x = 5,516,499,844.93/115,956.65
  6. Step 6: Final answer
    x = 47,573.81

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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.