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Finding the Fourth Proportional to 207,244.31, 285,997.16 and 117,820.31

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Solution

The fourth proportional to 207,244.31, 285,997.16 and 117,820.31 is: 162,592.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,244.31 : 285,997.16 = 117,820.31 : x
  2. Step 2: Convert to fraction form
    207,244.31/285,997.16 = 117,820.31/x
  3. Step 3: Cross multiply
    207,244.31x = 285,997.16 × 117,820.31
  4. Step 4: Simplify right side
    207,244.31x = 33,696,275,059.86
  5. Step 5: Solve for x
    x = 33,696,275,059.86/207,244.31
  6. Step 6: Final answer
    x = 162,592.04

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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.