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Finding the Fourth Proportional to 68,019.04, 102,039.08 and 34,721.04

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Solution

The fourth proportional to 68,019.04, 102,039.08 and 34,721.04 is: 52,086.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019.04 : 102,039.08 = 34,721.04 : x
  2. Step 2: Convert to fraction form
    68,019.04/102,039.08 = 34,721.04/x
  3. Step 3: Cross multiply
    68,019.04x = 102,039.08 × 34,721.04
  4. Step 4: Simplify right side
    68,019.04x = 3,542,902,978.24
  5. Step 5: Solve for x
    x = 3,542,902,978.24/68,019.04
  6. Step 6: Final answer
    x = 52,086.93

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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.