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Finding the Fourth Proportional to 124,961.64, 187,245.62 and 68,718.22

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Solution

The fourth proportional to 124,961.64, 187,245.62 and 68,718.22 is: 102,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,961.64 : 187,245.62 = 68,718.22 : x
  2. Step 2: Convert to fraction form
    124,961.64/187,245.62 = 68,718.22/x
  3. Step 3: Cross multiply
    124,961.64x = 187,245.62 × 68,718.22
  4. Step 4: Simplify right side
    124,961.64x = 12,867,185,709.20
  5. Step 5: Solve for x
    x = 12,867,185,709.20/124,961.64
  6. Step 6: Final answer
    x = 102,969.08

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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.