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Finding the Fourth Proportional to 256,528.32, 354,008.52 and 143,351.08

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Solution

The fourth proportional to 256,528.32, 354,008.52 and 143,351.08 is: 197,824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,528.32 : 354,008.52 = 143,351.08 : x
  2. Step 2: Convert to fraction form
    256,528.32/354,008.52 = 143,351.08/x
  3. Step 3: Cross multiply
    256,528.32x = 354,008.52 × 143,351.08
  4. Step 4: Simplify right side
    256,528.32x = 50,747,503,671.20
  5. Step 5: Solve for x
    x = 50,747,503,671.20/256,528.32
  6. Step 6: Final answer
    x = 197,824.18

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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.