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Finding the Fourth Proportional to 108,885.56, 150,261.36 and 68,625.32

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Solution

The fourth proportional to 108,885.56, 150,261.36 and 68,625.32 is: 94,702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,885.56 : 150,261.36 = 68,625.32 : x
  2. Step 2: Convert to fraction form
    108,885.56/150,261.36 = 68,625.32/x
  3. Step 3: Cross multiply
    108,885.56x = 150,261.36 × 68,625.32
  4. Step 4: Simplify right side
    108,885.56x = 10,311,733,913.64
  5. Step 5: Solve for x
    x = 10,311,733,913.64/108,885.56
  6. Step 6: Final answer
    x = 94,702.49

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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.