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Finding the Fourth Proportional to 172,831.80, 259,247.70 and 116,844.60

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Solution

The fourth proportional to 172,831.80, 259,247.70 and 116,844.60 is: 175,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,831.80 : 259,247.70 = 116,844.60 : x
  2. Step 2: Convert to fraction form
    172,831.80/259,247.70 = 116,844.60/x
  3. Step 3: Cross multiply
    172,831.80x = 259,247.70 × 116,844.60
  4. Step 4: Simplify right side
    172,831.80x = 30,291,693,807.42
  5. Step 5: Solve for x
    x = 30,291,693,807.42/172,831.80
  6. Step 6: Final answer
    x = 175,266.90

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1.5x scale

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.