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Finding the Fourth Proportional to 186,264.29, 279,200.81 and 91,363.07

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Solution

The fourth proportional to 186,264.29, 279,200.81 and 91,363.07 is: 136,948.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,264.29 : 279,200.81 = 91,363.07 : x
  2. Step 2: Convert to fraction form
    186,264.29/279,200.81 = 91,363.07/x
  3. Step 3: Cross multiply
    186,264.29x = 279,200.81 × 91,363.07
  4. Step 4: Simplify right side
    186,264.29x = 25,508,644,074.50
  5. Step 5: Solve for x
    x = 25,508,644,074.50/186,264.29
  6. Step 6: Final answer
    x = 136,948.65

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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.