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Finding the Fourth Proportional to 230,831.20, 346,198.20 and 97,715.80

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Solution

The fourth proportional to 230,831.20, 346,198.20 and 97,715.80 is: 146,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,831.20 : 346,198.20 = 97,715.80 : x
  2. Step 2: Convert to fraction form
    230,831.20/346,198.20 = 97,715.80/x
  3. Step 3: Cross multiply
    230,831.20x = 346,198.20 × 97,715.80
  4. Step 4: Simplify right side
    230,831.20x = 33,829,034,071.56
  5. Step 5: Solve for x
    x = 33,829,034,071.56/230,831.20
  6. Step 6: Final answer
    x = 146,553.13

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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.