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Finding the Fourth Proportional to 247,159.20, 370,738.80 and 153,847.20

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Solution

The fourth proportional to 247,159.20, 370,738.80 and 153,847.20 is: 230,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,159.20 : 370,738.80 = 153,847.20 : x
  2. Step 2: Convert to fraction form
    247,159.20/370,738.80 = 153,847.20/x
  3. Step 3: Cross multiply
    247,159.20x = 370,738.80 × 153,847.20
  4. Step 4: Simplify right side
    247,159.20x = 57,037,126,311.36
  5. Step 5: Solve for x
    x = 57,037,126,311.36/247,159.20
  6. Step 6: Final answer
    x = 230,770.80

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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.