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Finding the Fourth Proportional to 201,774.54, 302,664.24 and 68,657.52

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Solution

The fourth proportional to 201,774.54, 302,664.24 and 68,657.52 is: 102,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,774.54 : 302,664.24 = 68,657.52 : x
  2. Step 2: Convert to fraction form
    201,774.54/302,664.24 = 68,657.52/x
  3. Step 3: Cross multiply
    201,774.54x = 302,664.24 × 68,657.52
  4. Step 4: Simplify right side
    201,774.54x = 20,780,176,111.08
  5. Step 5: Solve for x
    x = 20,780,176,111.08/201,774.54
  6. Step 6: Final answer
    x = 102,987.11

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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.