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Finding the Fourth Proportional to 201,910.90, 302,607.15 and 154,930.90

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Solution

The fourth proportional to 201,910.90, 302,607.15 and 154,930.90 is: 232,197.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,910.90 : 302,607.15 = 154,930.90 : x
  2. Step 2: Convert to fraction form
    201,910.90/302,607.15 = 154,930.90/x
  3. Step 3: Cross multiply
    201,910.90x = 302,607.15 × 154,930.90
  4. Step 4: Simplify right side
    201,910.90x = 46,883,198,095.94
  5. Step 5: Solve for x
    x = 46,883,198,095.94/201,910.90
  6. Step 6: Final answer
    x = 232,197.46

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1.5x scale

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.