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Finding the Fourth Proportional to 202,197.40, 303,296.10 and 162,831.40

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Solution

The fourth proportional to 202,197.40, 303,296.10 and 162,831.40 is: 244,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,197.40 : 303,296.10 = 162,831.40 : x
  2. Step 2: Convert to fraction form
    202,197.40/303,296.10 = 162,831.40/x
  3. Step 3: Cross multiply
    202,197.40x = 303,296.10 × 162,831.40
  4. Step 4: Simplify right side
    202,197.40x = 49,386,128,577.54
  5. Step 5: Solve for x
    x = 49,386,128,577.54/202,197.40
  6. Step 6: Final answer
    x = 244,247.10

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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.