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Finding the Fourth Proportional to 352,990.16, 487,126.28 and 194,014.16

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Solution

The fourth proportional to 352,990.16, 487,126.28 and 194,014.16 is: 267,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,990.16 : 487,126.28 = 194,014.16 : x
  2. Step 2: Convert to fraction form
    352,990.16/487,126.28 = 194,014.16/x
  3. Step 3: Cross multiply
    352,990.16x = 487,126.28 × 194,014.16
  4. Step 4: Simplify right side
    352,990.16x = 94,509,396,028.12
  5. Step 5: Solve for x
    x = 94,509,396,028.12/352,990.16
  6. Step 6: Final answer
    x = 267,739.46

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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.