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Finding the Fourth Proportional to 203,324.00, 280,587.69 and 112,681.41

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Solution

The fourth proportional to 203,324.00, 280,587.69 and 112,681.41 is: 155,500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,324.00 : 280,587.69 = 112,681.41 : x
  2. Step 2: Convert to fraction form
    203,324.00/280,587.69 = 112,681.41/x
  3. Step 3: Cross multiply
    203,324.00x = 280,587.69 × 112,681.41
  4. Step 4: Simplify right side
    203,324.00x = 31,617,016,537.84
  5. Step 5: Solve for x
    x = 31,617,016,537.84/203,324.00
  6. Step 6: Final answer
    x = 155,500.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.