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Finding the Fourth Proportional to 170,736.80, 255,586.80 and 152,074.40

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Solution

The fourth proportional to 170,736.80, 255,586.80 and 152,074.40 is: 227,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,736.80 : 255,586.80 = 152,074.40 : x
  2. Step 2: Convert to fraction form
    170,736.80/255,586.80 = 152,074.40/x
  3. Step 3: Cross multiply
    170,736.80x = 255,586.80 × 152,074.40
  4. Step 4: Simplify right side
    170,736.80x = 38,868,209,257.92
  5. Step 5: Solve for x
    x = 38,868,209,257.92/170,736.80
  6. Step 6: Final answer
    x = 227,649.86

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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.