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Finding the Fourth Proportional to 101,247.80, 151,750.20 and 69,657.80

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Solution

The fourth proportional to 101,247.80, 151,750.20 and 69,657.80 is: 104,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,247.80 : 151,750.20 = 69,657.80 : x
  2. Step 2: Convert to fraction form
    101,247.80/151,750.20 = 69,657.80/x
  3. Step 3: Cross multiply
    101,247.80x = 151,750.20 × 69,657.80
  4. Step 4: Simplify right side
    101,247.80x = 10,570,585,081.56
  5. Step 5: Solve for x
    x = 10,570,585,081.56/101,247.80
  6. Step 6: Final answer
    x = 104,403.11

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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.