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Finding the Fourth Proportional to 201,421.80, 301,787.10 and 96,013.80

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Solution

The fourth proportional to 201,421.80, 301,787.10 and 96,013.80 is: 143,855.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,421.80 : 301,787.10 = 96,013.80 : x
  2. Step 2: Convert to fraction form
    201,421.80/301,787.10 = 96,013.80/x
  3. Step 3: Cross multiply
    201,421.80x = 301,787.10 × 96,013.80
  4. Step 4: Simplify right side
    201,421.80x = 28,975,726,261.98
  5. Step 5: Solve for x
    x = 28,975,726,261.98/201,421.80
  6. Step 6: Final answer
    x = 143,855.96

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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.