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Finding the Fourth Proportional to 243,831.88, 365,760.06 and 77,632.84

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Solution

The fourth proportional to 243,831.88, 365,760.06 and 77,632.84 is: 116,453.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,831.88 : 365,760.06 = 77,632.84 : x
  2. Step 2: Convert to fraction form
    243,831.88/365,760.06 = 77,632.84/x
  3. Step 3: Cross multiply
    243,831.88x = 365,760.06 × 77,632.84
  4. Step 4: Simplify right side
    243,831.88x = 28,394,992,216.37
  5. Step 5: Solve for x
    x = 28,394,992,216.37/243,831.88
  6. Step 6: Final answer
    x = 116,453.16

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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.