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Finding the Fourth Proportional to 68,357.26, 102,700.32 and 64,581.04

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Solution

The fourth proportional to 68,357.26, 102,700.32 and 64,581.04 is: 97,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,357.26 : 102,700.32 = 64,581.04 : x
  2. Step 2: Convert to fraction form
    68,357.26/102,700.32 = 64,581.04/x
  3. Step 3: Cross multiply
    68,357.26x = 102,700.32 × 64,581.04
  4. Step 4: Simplify right side
    68,357.26x = 6,632,493,473.93
  5. Step 5: Solve for x
    x = 6,632,493,473.93/68,357.26
  6. Step 6: Final answer
    x = 97,026.91

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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.