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Finding the Fourth Proportional to 331,991.91, 458,148.83 and 181,088.91

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Solution

The fourth proportional to 331,991.91, 458,148.83 and 181,088.91 is: 249,902.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,991.91 : 458,148.83 = 181,088.91 : x
  2. Step 2: Convert to fraction form
    331,991.91/458,148.83 = 181,088.91/x
  3. Step 3: Cross multiply
    331,991.91x = 458,148.83 × 181,088.91
  4. Step 4: Simplify right side
    331,991.91x = 82,965,670,977.14
  5. Step 5: Solve for x
    x = 82,965,670,977.14/331,991.91
  6. Step 6: Final answer
    x = 249,902.69

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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.