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Finding the Fourth Proportional to 213,049.92, 293,999.04 and 122,342.07

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Solution

The fourth proportional to 213,049.92, 293,999.04 and 122,342.07 is: 168,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,049.92 : 293,999.04 = 122,342.07 : x
  2. Step 2: Convert to fraction form
    213,049.92/293,999.04 = 122,342.07/x
  3. Step 3: Cross multiply
    213,049.92x = 293,999.04 × 122,342.07
  4. Step 4: Simplify right side
    213,049.92x = 35,968,451,131.61
  5. Step 5: Solve for x
    x = 35,968,451,131.61/213,049.92
  6. Step 6: Final answer
    x = 168,826.40

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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.