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Finding the Fourth Proportional to 201,907.90, 302,521.65 and 159,625.90

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Solution

The fourth proportional to 201,907.90, 302,521.65 and 159,625.90 is: 239,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,907.90 : 302,521.65 = 159,625.90 : x
  2. Step 2: Convert to fraction form
    201,907.90/302,521.65 = 159,625.90/x
  3. Step 3: Cross multiply
    201,907.90x = 302,521.65 × 159,625.90
  4. Step 4: Simplify right side
    201,907.90x = 48,290,290,650.74
  5. Step 5: Solve for x
    x = 48,290,290,650.74/201,907.90
  6. Step 6: Final answer
    x = 239,169.89

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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.