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Finding the Fourth Proportional to 68,074.70, 102,005.36 and 43,061.91

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Solution

The fourth proportional to 68,074.70, 102,005.36 and 43,061.91 is: 64,525.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,074.70 : 102,005.36 = 43,061.91 : x
  2. Step 2: Convert to fraction form
    68,074.70/102,005.36 = 43,061.91/x
  3. Step 3: Cross multiply
    68,074.70x = 102,005.36 × 43,061.91
  4. Step 4: Simplify right side
    68,074.70x = 4,392,545,416.53
  5. Step 5: Solve for x
    x = 4,392,545,416.53/68,074.70
  6. Step 6: Final answer
    x = 64,525.38

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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.