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Finding the Fourth Proportional to 203,002.30, 304,503.45 and 97,831.90

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Solution

The fourth proportional to 203,002.30, 304,503.45 and 97,831.90 is: 146,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,002.30 : 304,503.45 = 97,831.90 : x
  2. Step 2: Convert to fraction form
    203,002.30/304,503.45 = 97,831.90/x
  3. Step 3: Cross multiply
    203,002.30x = 304,503.45 × 97,831.90
  4. Step 4: Simplify right side
    203,002.30x = 29,790,151,070.06
  5. Step 5: Solve for x
    x = 29,790,151,070.06/203,002.30
  6. Step 6: Final answer
    x = 146,747.85

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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.