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Finding the Fourth Proportional to 303,608.40, 455,412.60 and 106,616.40

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Solution

The fourth proportional to 303,608.40, 455,412.60 and 106,616.40 is: 159,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,608.40 : 455,412.60 = 106,616.40 : x
  2. Step 2: Convert to fraction form
    303,608.40/455,412.60 = 106,616.40/x
  3. Step 3: Cross multiply
    303,608.40x = 455,412.60 × 106,616.40
  4. Step 4: Simplify right side
    303,608.40x = 48,554,451,926.64
  5. Step 5: Solve for x
    x = 48,554,451,926.64/303,608.40
  6. Step 6: Final answer
    x = 159,924.60

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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.