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Finding the Fourth Proportional to 256,893.56, 385,341.92 and 67,352.22

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Solution

The fourth proportional to 256,893.56, 385,341.92 and 67,352.22 is: 101,028.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,893.56 : 385,341.92 = 67,352.22 : x
  2. Step 2: Convert to fraction form
    256,893.56/385,341.92 = 67,352.22/x
  3. Step 3: Cross multiply
    256,893.56x = 385,341.92 × 67,352.22
  4. Step 4: Simplify right side
    256,893.56x = 25,953,633,434.30
  5. Step 5: Solve for x
    x = 25,953,633,434.30/256,893.56
  6. Step 6: Final answer
    x = 101,028.74

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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.