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Finding the Fourth Proportional to 170,671.14, 256,120.97 and 70,831.41

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Solution

The fourth proportional to 170,671.14, 256,120.97 and 70,831.41 is: 106,294.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,671.14 : 256,120.97 = 70,831.41 : x
  2. Step 2: Convert to fraction form
    170,671.14/256,120.97 = 70,831.41/x
  3. Step 3: Cross multiply
    170,671.14x = 256,120.97 × 70,831.41
  4. Step 4: Simplify right side
    170,671.14x = 18,141,409,081.51
  5. Step 5: Solve for x
    x = 18,141,409,081.51/170,671.14
  6. Step 6: Final answer
    x = 106,294.54

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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.