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Finding the Fourth Proportional to 210,479.22, 290,474.69 and 119,843.10

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Solution

The fourth proportional to 210,479.22, 290,474.69 and 119,843.10 is: 165,391.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,479.22 : 290,474.69 = 119,843.10 : x
  2. Step 2: Convert to fraction form
    210,479.22/290,474.69 = 119,843.10/x
  3. Step 3: Cross multiply
    210,479.22x = 290,474.69 × 119,843.10
  4. Step 4: Simplify right side
    210,479.22x = 34,811,386,721.92
  5. Step 5: Solve for x
    x = 34,811,386,721.92/210,479.22
  6. Step 6: Final answer
    x = 165,391.09

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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.