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Finding the Fourth Proportional to 136,790.10, 204,784.20 and 97,424.10

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Solution

The fourth proportional to 136,790.10, 204,784.20 and 97,424.10 is: 145,850.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,790.10 : 204,784.20 = 97,424.10 : x
  2. Step 2: Convert to fraction form
    136,790.10/204,784.20 = 97,424.10/x
  3. Step 3: Cross multiply
    136,790.10x = 204,784.20 × 97,424.10
  4. Step 4: Simplify right side
    136,790.10x = 19,950,916,379.22
  5. Step 5: Solve for x
    x = 19,950,916,379.22/136,790.10
  6. Step 6: Final answer
    x = 145,850.59

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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.