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Finding the Fourth Proportional to 59,699.80, 89,608.38 and 45,528.04

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Solution

The fourth proportional to 59,699.80, 89,608.38 and 45,528.04 is: 68,336.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,699.80 : 89,608.38 = 45,528.04 : x
  2. Step 2: Convert to fraction form
    59,699.80/89,608.38 = 45,528.04/x
  3. Step 3: Cross multiply
    59,699.80x = 89,608.38 × 45,528.04
  4. Step 4: Simplify right side
    59,699.80x = 4,079,693,908.98
  5. Step 5: Solve for x
    x = 4,079,693,908.98/59,699.80
  6. Step 6: Final answer
    x = 68,336.81

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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.