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Finding the Fourth Proportional to 201,596.40, 278,184.96 and 116,719.20

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Solution

The fourth proportional to 201,596.40, 278,184.96 and 116,719.20 is: 161,062.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,596.40 : 278,184.96 = 116,719.20 : x
  2. Step 2: Convert to fraction form
    201,596.40/278,184.96 = 116,719.20/x
  3. Step 3: Cross multiply
    201,596.40x = 278,184.96 × 116,719.20
  4. Step 4: Simplify right side
    201,596.40x = 32,469,525,983.23
  5. Step 5: Solve for x
    x = 32,469,525,983.23/201,596.40
  6. Step 6: Final answer
    x = 161,062.03

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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.