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Finding the Fourth Proportional to 45,458.30, 68,123.45 and 36,114.30

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Solution

The fourth proportional to 45,458.30, 68,123.45 and 36,114.30 is: 54,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,458.30 : 68,123.45 = 36,114.30 : x
  2. Step 2: Convert to fraction form
    45,458.30/68,123.45 = 36,114.30/x
  3. Step 3: Cross multiply
    45,458.30x = 68,123.45 × 36,114.30
  4. Step 4: Simplify right side
    45,458.30x = 2,460,230,710.34
  5. Step 5: Solve for x
    x = 2,460,230,710.34/45,458.30
  6. Step 6: Final answer
    x = 54,120.61

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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.