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Finding the Fourth Proportional to 256,093.47, 353,428.55 and 141,394.20

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Solution

The fourth proportional to 256,093.47, 353,428.55 and 141,394.20 is: 195,134.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,093.47 : 353,428.55 = 141,394.20 : x
  2. Step 2: Convert to fraction form
    256,093.47/353,428.55 = 141,394.20/x
  3. Step 3: Cross multiply
    256,093.47x = 353,428.55 × 141,394.20
  4. Step 4: Simplify right side
    256,093.47x = 49,972,746,377.44
  5. Step 5: Solve for x
    x = 49,972,746,377.44/256,093.47
  6. Step 6: Final answer
    x = 195,134.79

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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.