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Finding the Fourth Proportional to 186,099.96, 279,149.94 and 45,858.60

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Solution

The fourth proportional to 186,099.96, 279,149.94 and 45,858.60 is: 68,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,099.96 : 279,149.94 = 45,858.60 : x
  2. Step 2: Convert to fraction form
    186,099.96/279,149.94 = 45,858.60/x
  3. Step 3: Cross multiply
    186,099.96x = 279,149.94 × 45,858.60
  4. Step 4: Simplify right side
    186,099.96x = 12,801,425,438.48
  5. Step 5: Solve for x
    x = 12,801,425,438.48/186,099.96
  6. Step 6: Final answer
    x = 68,787.90

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1.5x scale

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.