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Finding the Fourth Proportional to 336,387.74, 504,664.64 and 99,730.42

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Solution

The fourth proportional to 336,387.74, 504,664.64 and 99,730.42 is: 149,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,387.74 : 504,664.64 = 99,730.42 : x
  2. Step 2: Convert to fraction form
    336,387.74/504,664.64 = 99,730.42/x
  3. Step 3: Cross multiply
    336,387.74x = 504,664.64 × 99,730.42
  4. Step 4: Simplify right side
    336,387.74x = 50,330,416,506.35
  5. Step 5: Solve for x
    x = 50,330,416,506.35/336,387.74
  6. Step 6: Final answer
    x = 149,620.25

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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.