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Finding the Fourth Proportional to 201,361.92, 302,041.52 and 68,335.83

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Solution

The fourth proportional to 201,361.92, 302,041.52 and 68,335.83 is: 102,503.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,361.92 : 302,041.52 = 68,335.83 : x
  2. Step 2: Convert to fraction form
    201,361.92/302,041.52 = 68,335.83/x
  3. Step 3: Cross multiply
    201,361.92x = 302,041.52 × 68,335.83
  4. Step 4: Simplify right side
    201,361.92x = 20,640,256,111.77
  5. Step 5: Solve for x
    x = 20,640,256,111.77/201,361.92
  6. Step 6: Final answer
    x = 102,503.28

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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.