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Finding the Fourth Proportional to 146,059.03, 201,562.05 and 78,991.03

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Solution

The fourth proportional to 146,059.03, 201,562.05 and 78,991.03 is: 109,007.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,059.03 : 201,562.05 = 78,991.03 : x
  2. Step 2: Convert to fraction form
    146,059.03/201,562.05 = 78,991.03/x
  3. Step 3: Cross multiply
    146,059.03x = 201,562.05 × 78,991.03
  4. Step 4: Simplify right side
    146,059.03x = 15,921,593,938.41
  5. Step 5: Solve for x
    x = 15,921,593,938.41/146,059.03
  6. Step 6: Final answer
    x = 109,007.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.