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Finding the Fourth Proportional to 303,469.60, 455,722.80 and 163,501.60

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Solution

The fourth proportional to 303,469.60, 455,722.80 and 163,501.60 is: 245,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,469.60 : 455,722.80 = 163,501.60 : x
  2. Step 2: Convert to fraction form
    303,469.60/455,722.80 = 163,501.60/x
  3. Step 3: Cross multiply
    303,469.60x = 455,722.80 × 163,501.60
  4. Step 4: Simplify right side
    303,469.60x = 74,511,406,956.48
  5. Step 5: Solve for x
    x = 74,511,406,956.48/303,469.60
  6. Step 6: Final answer
    x = 245,531.70

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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.