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Finding the Fourth Proportional to 166,831.02, 250,246.53 and 42,172.02

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Solution

The fourth proportional to 166,831.02, 250,246.53 and 42,172.02 is: 63,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,831.02 : 250,246.53 = 42,172.02 : x
  2. Step 2: Convert to fraction form
    166,831.02/250,246.53 = 42,172.02/x
  3. Step 3: Cross multiply
    166,831.02x = 250,246.53 × 42,172.02
  4. Step 4: Simplify right side
    166,831.02x = 10,553,401,668.09
  5. Step 5: Solve for x
    x = 10,553,401,668.09/166,831.02
  6. Step 6: Final answer
    x = 63,258.03

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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.