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Finding the Fourth Proportional to 336,401.91, 504,602.87 and 136,721.52

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Solution

The fourth proportional to 336,401.91, 504,602.87 and 136,721.52 is: 205,082.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,401.91 : 504,602.87 = 136,721.52 : x
  2. Step 2: Convert to fraction form
    336,401.91/504,602.87 = 136,721.52/x
  3. Step 3: Cross multiply
    336,401.91x = 504,602.87 × 136,721.52
  4. Step 4: Simplify right side
    336,401.91x = 68,990,070,699.15
  5. Step 5: Solve for x
    x = 68,990,070,699.15/336,401.91
  6. Step 6: Final answer
    x = 205,082.28

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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.