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Finding the Fourth Proportional to 168,831.40, 253,247.10 and 44,172.40

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Solution

The fourth proportional to 168,831.40, 253,247.10 and 44,172.40 is: 66,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,831.40 : 253,247.10 = 44,172.40 : x
  2. Step 2: Convert to fraction form
    168,831.40/253,247.10 = 44,172.40/x
  3. Step 3: Cross multiply
    168,831.40x = 253,247.10 × 44,172.40
  4. Step 4: Simplify right side
    168,831.40x = 11,186,532,200.04
  5. Step 5: Solve for x
    x = 11,186,532,200.04/168,831.40
  6. Step 6: Final answer
    x = 66,258.60

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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.