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Finding the Fourth Proportional to 68,215.92, 94,113 and 41,339.04

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Solution

The fourth proportional to 68,215.92, 94,113 and 41,339.04 is: 57,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,215.92 : 94,113 = 41,339.04 : x
  2. Step 2: Convert to fraction form
    68,215.92/94,113 = 41,339.04/x
  3. Step 3: Cross multiply
    68,215.92x = 94,113 × 41,339.04
  4. Step 4: Simplify right side
    68,215.92x = 3,890,541,071.52
  5. Step 5: Solve for x
    x = 3,890,541,071.52/68,215.92
  6. Step 6: Final answer
    x = 57,032.74

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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.