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Finding the Fourth Proportional to 59,930.46, 90,019.59 and 57,938.46

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Solution

The fourth proportional to 59,930.46, 90,019.59 and 57,938.46 is: 87,027.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,930.46 : 90,019.59 = 57,938.46 : x
  2. Step 2: Convert to fraction form
    59,930.46/90,019.59 = 57,938.46/x
  3. Step 3: Cross multiply
    59,930.46x = 90,019.59 × 57,938.46
  4. Step 4: Simplify right side
    59,930.46x = 5,215,596,414.43
  5. Step 5: Solve for x
    x = 5,215,596,414.43/59,930.46
  6. Step 6: Final answer
    x = 87,027.47

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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.