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Finding the Fourth Proportional to 186,617.70, 279,842.31 and 53,467.48

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Solution

The fourth proportional to 186,617.70, 279,842.31 and 53,467.48 is: 80,177.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,617.70 : 279,842.31 = 53,467.48 : x
  2. Step 2: Convert to fraction form
    186,617.70/279,842.31 = 53,467.48/x
  3. Step 3: Cross multiply
    186,617.70x = 279,842.31 × 53,467.48
  4. Step 4: Simplify right side
    186,617.70x = 14,962,463,113.08
  5. Step 5: Solve for x
    x = 14,962,463,113.08/186,617.70
  6. Step 6: Final answer
    x = 80,177.08

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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.