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Finding the Fourth Proportional to 197,878.28, 296,831.16 and 79,549.68

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Solution

The fourth proportional to 197,878.28, 296,831.16 and 79,549.68 is: 119,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,878.28 : 296,831.16 = 79,549.68 : x
  2. Step 2: Convert to fraction form
    197,878.28/296,831.16 = 79,549.68/x
  3. Step 3: Cross multiply
    197,878.28x = 296,831.16 × 79,549.68
  4. Step 4: Simplify right side
    197,878.28x = 23,612,823,792.03
  5. Step 5: Solve for x
    x = 23,612,823,792.03/197,878.28
  6. Step 6: Final answer
    x = 119,330.04

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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.