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Finding the Fourth Proportional to 445,524.48, 668,065.62 and 141,879.06

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Solution

The fourth proportional to 445,524.48, 668,065.62 and 141,879.06 is: 212,748.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,524.48 : 668,065.62 = 141,879.06 : x
  2. Step 2: Convert to fraction form
    445,524.48/668,065.62 = 141,879.06/x
  3. Step 3: Cross multiply
    445,524.48x = 668,065.62 × 141,879.06
  4. Step 4: Simplify right side
    445,524.48x = 94,784,522,183.92
  5. Step 5: Solve for x
    x = 94,784,522,183.92/445,524.48
  6. Step 6: Final answer
    x = 212,748.18

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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.