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Finding the Fourth Proportional to 167,980.32, 251,979.66 and 68,125.68

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Solution

The fourth proportional to 167,980.32, 251,979.66 and 68,125.68 is: 102,192.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,980.32 : 251,979.66 = 68,125.68 : x
  2. Step 2: Convert to fraction form
    167,980.32/251,979.66 = 68,125.68/x
  3. Step 3: Cross multiply
    167,980.32x = 251,979.66 × 68,125.68
  4. Step 4: Simplify right side
    167,980.32x = 17,166,285,683.67
  5. Step 5: Solve for x
    x = 17,166,285,683.67/167,980.32
  6. Step 6: Final answer
    x = 102,192.24

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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.