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Finding the Fourth Proportional to 186,580.65, 279,783.44 and 68,169.18

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Solution

The fourth proportional to 186,580.65, 279,783.44 and 68,169.18 is: 102,221.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,580.65 : 279,783.44 = 68,169.18 : x
  2. Step 2: Convert to fraction form
    186,580.65/279,783.44 = 68,169.18/x
  3. Step 3: Cross multiply
    186,580.65x = 279,783.44 × 68,169.18
  4. Step 4: Simplify right side
    186,580.65x = 19,072,607,341.53
  5. Step 5: Solve for x
    x = 19,072,607,341.53/186,580.65
  6. Step 6: Final answer
    x = 102,221.79

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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.