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Finding the Fourth Proportional to 134,716.76, 185,831.96 and 84,328.28

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Solution

The fourth proportional to 134,716.76, 185,831.96 and 84,328.28 is: 116,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,716.76 : 185,831.96 = 84,328.28 : x
  2. Step 2: Convert to fraction form
    134,716.76/185,831.96 = 84,328.28/x
  3. Step 3: Cross multiply
    134,716.76x = 185,831.96 × 84,328.28
  4. Step 4: Simplify right side
    134,716.76x = 15,670,889,555.83
  5. Step 5: Solve for x
    x = 15,670,889,555.83/134,716.76
  6. Step 6: Final answer
    x = 116,324.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.