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Finding the Fourth Proportional to 59,903.16, 89,821.02 and 19,900.74

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Solution

The fourth proportional to 59,903.16, 89,821.02 and 19,900.74 is: 29,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,903.16 : 89,821.02 = 19,900.74 : x
  2. Step 2: Convert to fraction form
    59,903.16/89,821.02 = 19,900.74/x
  3. Step 3: Cross multiply
    59,903.16x = 89,821.02 × 19,900.74
  4. Step 4: Simplify right side
    59,903.16x = 1,787,504,765.55
  5. Step 5: Solve for x
    x = 1,787,504,765.55/59,903.16
  6. Step 6: Final answer
    x = 29,839.91

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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.