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Finding the Fourth Proportional to 303,576.21, 455,281.20 and 114,021.93

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Solution

The fourth proportional to 303,576.21, 455,281.20 and 114,021.93 is: 171,001.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,576.21 : 455,281.20 = 114,021.93 : x
  2. Step 2: Convert to fraction form
    303,576.21/455,281.20 = 114,021.93/x
  3. Step 3: Cross multiply
    303,576.21x = 455,281.20 × 114,021.93
  4. Step 4: Simplify right side
    303,576.21x = 51,912,041,116.72
  5. Step 5: Solve for x
    x = 51,912,041,116.72/303,576.21
  6. Step 6: Final answer
    x = 171,001.68

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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.