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Finding the Fourth Proportional to 186,404.64, 279,868.32 and 178,006.56

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Solution

The fourth proportional to 186,404.64, 279,868.32 and 178,006.56 is: 267,259.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,404.64 : 279,868.32 = 178,006.56 : x
  2. Step 2: Convert to fraction form
    186,404.64/279,868.32 = 178,006.56/x
  3. Step 3: Cross multiply
    186,404.64x = 279,868.32 × 178,006.56
  4. Step 4: Simplify right side
    186,404.64x = 49,818,396,896.18
  5. Step 5: Solve for x
    x = 49,818,396,896.18/186,404.64
  6. Step 6: Final answer
    x = 267,259.42

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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.