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Finding the Fourth Proportional to 201,990.10, 302,620.65 and 96,576.70

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Solution

The fourth proportional to 201,990.10, 302,620.65 and 96,576.70 is: 144,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,990.10 : 302,620.65 = 96,576.70 : x
  2. Step 2: Convert to fraction form
    201,990.10/302,620.65 = 96,576.70/x
  3. Step 3: Cross multiply
    201,990.10x = 302,620.65 × 96,576.70
  4. Step 4: Simplify right side
    201,990.10x = 29,226,103,728.86
  5. Step 5: Solve for x
    x = 29,226,103,728.86/201,990.10
  6. Step 6: Final answer
    x = 144,690.77

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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.