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Finding the Fourth Proportional to 136,371.37, 204,461.95 and 60,428.60

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Solution

The fourth proportional to 136,371.37, 204,461.95 and 60,428.60 is: 90,600.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,371.37 : 204,461.95 = 60,428.60 : x
  2. Step 2: Convert to fraction form
    136,371.37/204,461.95 = 60,428.60/x
  3. Step 3: Cross multiply
    136,371.37x = 204,461.95 × 60,428.60
  4. Step 4: Simplify right side
    136,371.37x = 12,355,349,751.85
  5. Step 5: Solve for x
    x = 12,355,349,751.85/136,371.37
  6. Step 6: Final answer
    x = 90,600.76

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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.