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Finding the Fourth Proportional to 134,484.30, 201,640.05 and 55,629.90

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Solution

The fourth proportional to 134,484.30, 201,640.05 and 55,629.90 is: 83,409.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,484.30 : 201,640.05 = 55,629.90 : x
  2. Step 2: Convert to fraction form
    134,484.30/201,640.05 = 55,629.90/x
  3. Step 3: Cross multiply
    134,484.30x = 201,640.05 × 55,629.90
  4. Step 4: Simplify right side
    134,484.30x = 11,217,215,817.50
  5. Step 5: Solve for x
    x = 11,217,215,817.50/134,484.30
  6. Step 6: Final answer
    x = 83,409.11

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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.