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Finding the Fourth Proportional to 336,639.88, 505,069.17 and 235,542.16

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Solution

The fourth proportional to 336,639.88, 505,069.17 and 235,542.16 is: 353,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,639.88 : 505,069.17 = 235,542.16 : x
  2. Step 2: Convert to fraction form
    336,639.88/505,069.17 = 235,542.16/x
  3. Step 3: Cross multiply
    336,639.88x = 505,069.17 × 235,542.16
  4. Step 4: Simplify right side
    336,639.88x = 118,965,079,548.15
  5. Step 5: Solve for x
    x = 118,965,079,548.15/336,639.88
  6. Step 6: Final answer
    x = 353,389.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.