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Finding the Fourth Proportional to 357,881.22, 536,807.79 and 121,223.88

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Solution

The fourth proportional to 357,881.22, 536,807.79 and 121,223.88 is: 181,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,881.22 : 536,807.79 = 121,223.88 : x
  2. Step 2: Convert to fraction form
    357,881.22/536,807.79 = 121,223.88/x
  3. Step 3: Cross multiply
    357,881.22x = 536,807.79 × 121,223.88
  4. Step 4: Simplify right side
    357,881.22x = 65,073,923,118.03
  5. Step 5: Solve for x
    x = 65,073,923,118.03/357,881.22
  6. Step 6: Final answer
    x = 181,831.06

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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.