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Finding the Fourth Proportional to 181,678.88, 250,457.01 and 127,796.66

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Solution

The fourth proportional to 181,678.88, 250,457.01 and 127,796.66 is: 176,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,678.88 : 250,457.01 = 127,796.66 : x
  2. Step 2: Convert to fraction form
    181,678.88/250,457.01 = 127,796.66/x
  3. Step 3: Cross multiply
    181,678.88x = 250,457.01 × 127,796.66
  4. Step 4: Simplify right side
    181,678.88x = 32,007,568,099.30
  5. Step 5: Solve for x
    x = 32,007,568,099.30/181,678.88
  6. Step 6: Final answer
    x = 176,176.61

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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.