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Finding the Fourth Proportional to 255,614.25, 352,731.62 and 140,886.57

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Solution

The fourth proportional to 255,614.25, 352,731.62 and 140,886.57 is: 194,414.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,614.25 : 352,731.62 = 140,886.57 : x
  2. Step 2: Convert to fraction form
    255,614.25/352,731.62 = 140,886.57/x
  3. Step 3: Cross multiply
    255,614.25x = 352,731.62 × 140,886.57
  4. Step 4: Simplify right side
    255,614.25x = 49,695,149,351.06
  5. Step 5: Solve for x
    x = 49,695,149,351.06/255,614.25
  6. Step 6: Final answer
    x = 194,414.63

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1.5x scale

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.