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Finding the Fourth Proportional to 186,160.83, 279,046.81 and 91,259.61

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Solution

The fourth proportional to 186,160.83, 279,046.81 and 91,259.61 is: 136,794.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,160.83 : 279,046.81 = 91,259.61 : x
  2. Step 2: Convert to fraction form
    186,160.83/279,046.81 = 91,259.61/x
  3. Step 3: Cross multiply
    186,160.83x = 279,046.81 × 91,259.61
  4. Step 4: Simplify right side
    186,160.83x = 25,465,703,052.34
  5. Step 5: Solve for x
    x = 25,465,703,052.34/186,160.83
  6. Step 6: Final answer
    x = 136,794.10

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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.