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Finding the Fourth Proportional to 303,569.72, 455,271.44 and 114,015.42

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Solution

The fourth proportional to 303,569.72, 455,271.44 and 114,015.42 is: 170,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,569.72 : 455,271.44 = 114,015.42 : x
  2. Step 2: Convert to fraction form
    303,569.72/455,271.44 = 114,015.42/x
  3. Step 3: Cross multiply
    303,569.72x = 455,271.44 × 114,015.42
  4. Step 4: Simplify right side
    303,569.72x = 51,907,964,445.60
  5. Step 5: Solve for x
    x = 51,907,964,445.60/303,569.72
  6. Step 6: Final answer
    x = 170,991.90

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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.