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Finding the Fourth Proportional to 136,794.18, 205,222.87 and 43,299.93

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Solution

The fourth proportional to 136,794.18, 205,222.87 and 43,299.93 is: 64,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,794.18 : 205,222.87 = 43,299.93 : x
  2. Step 2: Convert to fraction form
    136,794.18/205,222.87 = 43,299.93/x
  3. Step 3: Cross multiply
    136,794.18x = 205,222.87 × 43,299.93
  4. Step 4: Simplify right side
    136,794.18x = 8,886,136,485.55
  5. Step 5: Solve for x
    x = 8,886,136,485.55/136,794.18
  6. Step 6: Final answer
    x = 64,959.90

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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.