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Finding the Fourth Proportional to 293,251.25, 404,688.89 and 159,115.25

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Solution

The fourth proportional to 293,251.25, 404,688.89 and 159,115.25 is: 219,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,251.25 : 404,688.89 = 159,115.25 : x
  2. Step 2: Convert to fraction form
    293,251.25/404,688.89 = 159,115.25/x
  3. Step 3: Cross multiply
    293,251.25x = 404,688.89 × 159,115.25
  4. Step 4: Simplify right side
    293,251.25x = 64,392,173,904.57
  5. Step 5: Solve for x
    x = 64,392,173,904.57/293,251.25
  6. Step 6: Final answer
    x = 219,580.22

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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.