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Finding the Fourth Proportional to 59,619.62, 89,373.84 and 20,149.28

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Solution

The fourth proportional to 59,619.62, 89,373.84 and 20,149.28 is: 30,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,619.62 : 89,373.84 = 20,149.28 : x
  2. Step 2: Convert to fraction form
    59,619.62/89,373.84 = 20,149.28/x
  3. Step 3: Cross multiply
    59,619.62x = 89,373.84 × 20,149.28
  4. Step 4: Simplify right side
    59,619.62x = 1,800,818,526.84
  5. Step 5: Solve for x
    x = 1,800,818,526.84/59,619.62
  6. Step 6: Final answer
    x = 30,205.13

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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.