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Finding the Fourth Proportional to 186,654.59, 279,783.83 and 91,750.94

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Solution

The fourth proportional to 186,654.59, 279,783.83 and 91,750.94 is: 137,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,654.59 : 279,783.83 = 91,750.94 : x
  2. Step 2: Convert to fraction form
    186,654.59/279,783.83 = 91,750.94/x
  3. Step 3: Cross multiply
    186,654.59x = 279,783.83 × 91,750.94
  4. Step 4: Simplify right side
    186,654.59x = 25,670,428,241.09
  5. Step 5: Solve for x
    x = 25,670,428,241.09/186,654.59
  6. Step 6: Final answer
    x = 137,529.05

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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.