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Finding the Fourth Proportional to 186,624.64, 279,936.96 and 61,965.64

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Solution

The fourth proportional to 186,624.64, 279,936.96 and 61,965.64 is: 92,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,624.64 : 279,936.96 = 61,965.64 : x
  2. Step 2: Convert to fraction form
    186,624.64/279,936.96 = 61,965.64/x
  3. Step 3: Cross multiply
    186,624.64x = 279,936.96 × 61,965.64
  4. Step 4: Simplify right side
    186,624.64x = 17,346,472,886.05
  5. Step 5: Solve for x
    x = 17,346,472,886.05/186,624.64
  6. Step 6: Final answer
    x = 92,948.46

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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.