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Finding the Fourth Proportional to 45,980.73, 68,934.44 and 42,290.37

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Solution

The fourth proportional to 45,980.73, 68,934.44 and 42,290.37 is: 63,401.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,980.73 : 68,934.44 = 42,290.37 : x
  2. Step 2: Convert to fraction form
    45,980.73/68,934.44 = 42,290.37/x
  3. Step 3: Cross multiply
    45,980.73x = 68,934.44 × 42,290.37
  4. Step 4: Simplify right side
    45,980.73x = 2,915,263,079.07
  5. Step 5: Solve for x
    x = 2,915,263,079.07/45,980.73
  6. Step 6: Final answer
    x = 63,401.84

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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.