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Finding the Fourth Proportional to 201,859.75, 278,566.46 and 117,026.02

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Solution

The fourth proportional to 201,859.75, 278,566.46 and 117,026.02 is: 161,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,859.75 : 278,566.46 = 117,026.02 : x
  2. Step 2: Convert to fraction form
    201,859.75/278,566.46 = 117,026.02/x
  3. Step 3: Cross multiply
    201,859.75x = 278,566.46 × 117,026.02
  4. Step 4: Simplify right side
    201,859.75x = 32,599,524,119.29
  5. Step 5: Solve for x
    x = 32,599,524,119.29/201,859.75
  6. Step 6: Final answer
    x = 161,495.91

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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.