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Finding the Fourth Proportional to 186,649.28, 279,932.46 and 53,528.96

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Solution

The fourth proportional to 186,649.28, 279,932.46 and 53,528.96 is: 80,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,649.28 : 279,932.46 = 53,528.96 : x
  2. Step 2: Convert to fraction form
    186,649.28/279,932.46 = 53,528.96/x
  3. Step 3: Cross multiply
    186,649.28x = 279,932.46 × 53,528.96
  4. Step 4: Simplify right side
    186,649.28x = 14,984,493,454.04
  5. Step 5: Solve for x
    x = 14,984,493,454.04/186,649.28
  6. Step 6: Final answer
    x = 80,281.55

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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.