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Finding the Fourth Proportional to 256,734.47, 354,266.30 and 141,994.89

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Solution

The fourth proportional to 256,734.47, 354,266.30 and 141,994.89 is: 195,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,734.47 : 354,266.30 = 141,994.89 : x
  2. Step 2: Convert to fraction form
    256,734.47/354,266.30 = 141,994.89/x
  3. Step 3: Cross multiply
    256,734.47x = 354,266.30 × 141,994.89
  4. Step 4: Simplify right side
    256,734.47x = 50,304,004,654.19
  5. Step 5: Solve for x
    x = 50,304,004,654.19/256,734.47
  6. Step 6: Final answer
    x = 195,937.87

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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.