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Finding the Fourth Proportional to 256,892.24, 385,339.95 and 67,350.90

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Solution

The fourth proportional to 256,892.24, 385,339.95 and 67,350.90 is: 101,026.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,892.24 : 385,339.95 = 67,350.90 : x
  2. Step 2: Convert to fraction form
    256,892.24/385,339.95 = 67,350.90/x
  3. Step 3: Cross multiply
    256,892.24x = 385,339.95 × 67,350.90
  4. Step 4: Simplify right side
    256,892.24x = 25,952,993,883.48
  5. Step 5: Solve for x
    x = 25,952,993,883.48/256,892.24
  6. Step 6: Final answer
    x = 101,026.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.