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Finding the Fourth Proportional to 226,698.60, 312,831.54 and 126,090.12

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Solution

The fourth proportional to 226,698.60, 312,831.54 and 126,090.12 is: 173,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,698.60 : 312,831.54 = 126,090.12 : x
  2. Step 2: Convert to fraction form
    226,698.60/312,831.54 = 126,090.12/x
  3. Step 3: Cross multiply
    226,698.60x = 312,831.54 × 126,090.12
  4. Step 4: Simplify right side
    226,698.60x = 39,444,966,418.38
  5. Step 5: Solve for x
    x = 39,444,966,418.38/226,698.60
  6. Step 6: Final answer
    x = 173,997.40

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1.5x scale

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.