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Finding the Fourth Proportional to 170,624.80, 256,244.40 and 165,095.20

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Solution

The fourth proportional to 170,624.80, 256,244.40 and 165,095.20 is: 247,940.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,624.80 : 256,244.40 = 165,095.20 : x
  2. Step 2: Convert to fraction form
    170,624.80/256,244.40 = 165,095.20/x
  3. Step 3: Cross multiply
    170,624.80x = 256,244.40 × 165,095.20
  4. Step 4: Simplify right side
    170,624.80x = 42,304,720,466.88
  5. Step 5: Solve for x
    x = 42,304,720,466.88/170,624.80
  6. Step 6: Final answer
    x = 247,940.04

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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.