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Finding the Fourth Proportional to 170,863.88, 255,951.24 and 143,061.60

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Solution

The fourth proportional to 170,863.88, 255,951.24 and 143,061.60 is: 214,303.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,863.88 : 255,951.24 = 143,061.60 : x
  2. Step 2: Convert to fraction form
    170,863.88/255,951.24 = 143,061.60/x
  3. Step 3: Cross multiply
    170,863.88x = 255,951.24 × 143,061.60
  4. Step 4: Simplify right side
    170,863.88x = 36,616,793,916.38
  5. Step 5: Solve for x
    x = 36,616,793,916.38/170,863.88
  6. Step 6: Final answer
    x = 214,303.89

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1.5x scale

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.