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Finding the Fourth Proportional to 186,491.19, 279,736.45 and 46,249.81

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Solution

The fourth proportional to 186,491.19, 279,736.45 and 46,249.81 is: 69,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,491.19 : 279,736.45 = 46,249.81 : x
  2. Step 2: Convert to fraction form
    186,491.19/279,736.45 = 46,249.81/x
  3. Step 3: Cross multiply
    186,491.19x = 279,736.45 × 46,249.81
  4. Step 4: Simplify right side
    186,491.19x = 12,937,757,662.57
  5. Step 5: Solve for x
    x = 12,937,757,662.57/186,491.19
  6. Step 6: Final answer
    x = 69,374.63

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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.