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Finding the Fourth Proportional to 336,384.86, 504,491.31 and 99,672.19

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Solution

The fourth proportional to 336,384.86, 504,491.31 and 99,672.19 is: 149,482.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,384.86 : 504,491.31 = 99,672.19 : x
  2. Step 2: Convert to fraction form
    336,384.86/504,491.31 = 99,672.19/x
  3. Step 3: Cross multiply
    336,384.86x = 504,491.31 × 99,672.19
  4. Step 4: Simplify right side
    336,384.86x = 50,283,752,442.44
  5. Step 5: Solve for x
    x = 50,283,752,442.44/336,384.86
  6. Step 6: Final answer
    x = 149,482.81

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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.