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Finding the Fourth Proportional to 239,868.70, 330,624.60 and 170,041.80

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Solution

The fourth proportional to 239,868.70, 330,624.60 and 170,041.80 is: 234,378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,868.70 : 330,624.60 = 170,041.80 : x
  2. Step 2: Convert to fraction form
    239,868.70/330,624.60 = 170,041.80/x
  3. Step 3: Cross multiply
    239,868.70x = 330,624.60 × 170,041.80
  4. Step 4: Simplify right side
    239,868.70x = 56,220,002,108.28
  5. Step 5: Solve for x
    x = 56,220,002,108.28/239,868.70
  6. Step 6: Final answer
    x = 234,378.24

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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.