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Finding the Fourth Proportional to 256,700.94, 354,248.28 and 143,523.42

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Solution

The fourth proportional to 256,700.94, 354,248.28 and 143,523.42 is: 198,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,700.94 : 354,248.28 = 143,523.42 : x
  2. Step 2: Convert to fraction form
    256,700.94/354,248.28 = 143,523.42/x
  3. Step 3: Cross multiply
    256,700.94x = 354,248.28 × 143,523.42
  4. Step 4: Simplify right side
    256,700.94x = 50,842,924,674.72
  5. Step 5: Solve for x
    x = 50,842,924,674.72/256,700.94
  6. Step 6: Final answer
    x = 198,062.87

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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.