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Finding the Fourth Proportional to 146,632.80, 202,353.60 and 79,564.80

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Solution

The fourth proportional to 146,632.80, 202,353.60 and 79,564.80 is: 109,799.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,632.80 : 202,353.60 = 79,564.80 : x
  2. Step 2: Convert to fraction form
    146,632.80/202,353.60 = 79,564.80/x
  3. Step 3: Cross multiply
    146,632.80x = 202,353.60 × 79,564.80
  4. Step 4: Simplify right side
    146,632.80x = 16,100,223,713.28
  5. Step 5: Solve for x
    x = 16,100,223,713.28/146,632.80
  6. Step 6: Final answer
    x = 109,799.61

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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.