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Finding the Fourth Proportional to 212,891.92, 293,786.76 and 117,407.44

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Solution

The fourth proportional to 212,891.92, 293,786.76 and 117,407.44 is: 162,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,891.92 : 293,786.76 = 117,407.44 : x
  2. Step 2: Convert to fraction form
    212,891.92/293,786.76 = 117,407.44/x
  3. Step 3: Cross multiply
    212,891.92x = 293,786.76 × 117,407.44
  4. Step 4: Simplify right side
    212,891.92x = 34,492,751,397.49
  5. Step 5: Solve for x
    x = 34,492,751,397.49/212,891.92
  6. Step 6: Final answer
    x = 162,020.01

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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.