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Finding the Fourth Proportional to 201,623.58, 302,479.11 and 61,378.56

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Solution

The fourth proportional to 201,623.58, 302,479.11 and 61,378.56 is: 92,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,623.58 : 302,479.11 = 61,378.56 : x
  2. Step 2: Convert to fraction form
    201,623.58/302,479.11 = 61,378.56/x
  3. Step 3: Cross multiply
    201,623.58x = 302,479.11 × 61,378.56
  4. Step 4: Simplify right side
    201,623.58x = 18,565,732,201.88
  5. Step 5: Solve for x
    x = 18,565,732,201.88/201,623.58
  6. Step 6: Final answer
    x = 92,081.16

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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.