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Finding the Fourth Proportional to 59,831.70, 89,820.45 and 30,234.30

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Solution

The fourth proportional to 59,831.70, 89,820.45 and 30,234.30 is: 45,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,831.70 : 89,820.45 = 30,234.30 : x
  2. Step 2: Convert to fraction form
    59,831.70/89,820.45 = 30,234.30/x
  3. Step 3: Cross multiply
    59,831.70x = 89,820.45 × 30,234.30
  4. Step 4: Simplify right side
    59,831.70x = 2,715,658,431.44
  5. Step 5: Solve for x
    x = 2,715,658,431.44/59,831.70
  6. Step 6: Final answer
    x = 45,388.29

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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.