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Finding the Fourth Proportional to 68,081.11, 102,014.95 and 43,068.32

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Solution

The fourth proportional to 68,081.11, 102,014.95 and 43,068.32 is: 64,534.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,081.11 : 102,014.95 = 43,068.32 : x
  2. Step 2: Convert to fraction form
    68,081.11/102,014.95 = 43,068.32/x
  3. Step 3: Cross multiply
    68,081.11x = 102,014.95 × 43,068.32
  4. Step 4: Simplify right side
    68,081.11x = 4,393,612,511.38
  5. Step 5: Solve for x
    x = 4,393,612,511.38/68,081.11
  6. Step 6: Final answer
    x = 64,534.97

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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.