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Finding the Fourth Proportional to 51,840.40, 77,645.40 and 44,928.40

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Solution

The fourth proportional to 51,840.40, 77,645.40 and 44,928.40 is: 67,292.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,840.40 : 77,645.40 = 44,928.40 : x
  2. Step 2: Convert to fraction form
    51,840.40/77,645.40 = 44,928.40/x
  3. Step 3: Cross multiply
    51,840.40x = 77,645.40 × 44,928.40
  4. Step 4: Simplify right side
    51,840.40x = 3,488,483,589.36
  5. Step 5: Solve for x
    x = 3,488,483,589.36/51,840.40
  6. Step 6: Final answer
    x = 67,292.76

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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.