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Finding the Fourth Proportional to 303,522.40, 455,283.60 and 106,530.40

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Solution

The fourth proportional to 303,522.40, 455,283.60 and 106,530.40 is: 159,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,522.40 : 455,283.60 = 106,530.40 : x
  2. Step 2: Convert to fraction form
    303,522.40/455,283.60 = 106,530.40/x
  3. Step 3: Cross multiply
    303,522.40x = 455,283.60 × 106,530.40
  4. Step 4: Simplify right side
    303,522.40x = 48,501,544,021.44
  5. Step 5: Solve for x
    x = 48,501,544,021.44/303,522.40
  6. Step 6: Final answer
    x = 159,795.60

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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.