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Finding the Fourth Proportional to 170,848.80, 256,532.40 and 131,450.40

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Solution

The fourth proportional to 170,848.80, 256,532.40 and 131,450.40 is: 197,375.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,848.80 : 256,532.40 = 131,450.40 : x
  2. Step 2: Convert to fraction form
    170,848.80/256,532.40 = 131,450.40/x
  3. Step 3: Cross multiply
    170,848.80x = 256,532.40 × 131,450.40
  4. Step 4: Simplify right side
    170,848.80x = 33,721,286,592.96
  5. Step 5: Solve for x
    x = 33,721,286,592.96/170,848.80
  6. Step 6: Final answer
    x = 197,375.03

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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.