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Finding the Fourth Proportional to 60,783.70, 91,148.19 and 25,705.30

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Solution

The fourth proportional to 60,783.70, 91,148.19 and 25,705.30 is: 38,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,783.70 : 91,148.19 = 25,705.30 : x
  2. Step 2: Convert to fraction form
    60,783.70/91,148.19 = 25,705.30/x
  3. Step 3: Cross multiply
    60,783.70x = 91,148.19 × 25,705.30
  4. Step 4: Simplify right side
    60,783.70x = 2,342,991,568.41
  5. Step 5: Solve for x
    x = 2,342,991,568.41/60,783.70
  6. Step 6: Final answer
    x = 38,546.38

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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.