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Finding the Fourth Proportional to 202,831.20, 303,663.60 and 124,099.20

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Solution

The fourth proportional to 202,831.20, 303,663.60 and 124,099.20 is: 185,791.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,831.20 : 303,663.60 = 124,099.20 : x
  2. Step 2: Convert to fraction form
    202,831.20/303,663.60 = 124,099.20/x
  3. Step 3: Cross multiply
    202,831.20x = 303,663.60 × 124,099.20
  4. Step 4: Simplify right side
    202,831.20x = 37,684,409,829.12
  5. Step 5: Solve for x
    x = 37,684,409,829.12/202,831.20
  6. Step 6: Final answer
    x = 185,791.98

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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.