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Finding the Fourth Proportional to 186,507.25, 279,760.88 and 53,387.98

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Solution

The fourth proportional to 186,507.25, 279,760.88 and 53,387.98 is: 80,081.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,507.25 : 279,760.88 = 53,387.98 : x
  2. Step 2: Convert to fraction form
    186,507.25/279,760.88 = 53,387.98/x
  3. Step 3: Cross multiply
    186,507.25x = 279,760.88 × 53,387.98
  4. Step 4: Simplify right side
    186,507.25x = 14,935,867,700.29
  5. Step 5: Solve for x
    x = 14,935,867,700.29/186,507.25
  6. Step 6: Final answer
    x = 80,081.97

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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.