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Finding the Fourth Proportional to 324,068.86, 486,151.89 and 113,669.74

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Solution

The fourth proportional to 324,068.86, 486,151.89 and 113,669.74 is: 170,521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,068.86 : 486,151.89 = 113,669.74 : x
  2. Step 2: Convert to fraction form
    324,068.86/486,151.89 = 113,669.74/x
  3. Step 3: Cross multiply
    324,068.86x = 486,151.89 × 113,669.74
  4. Step 4: Simplify right side
    324,068.86x = 55,260,758,936.81
  5. Step 5: Solve for x
    x = 55,260,758,936.81/324,068.86
  6. Step 6: Final answer
    x = 170,521.66

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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.