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Finding the Fourth Proportional to 186,573.17, 279,968.17 and 78,494.62

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Solution

The fourth proportional to 186,573.17, 279,968.17 and 78,494.62 is: 117,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,573.17 : 279,968.17 = 78,494.62 : x
  2. Step 2: Convert to fraction form
    186,573.17/279,968.17 = 78,494.62/x
  3. Step 3: Cross multiply
    186,573.17x = 279,968.17 × 78,494.62
  4. Step 4: Simplify right side
    186,573.17x = 21,975,994,220.09
  5. Step 5: Solve for x
    x = 21,975,994,220.09/186,573.17
  6. Step 6: Final answer
    x = 117,787.54

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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.