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Finding the Fourth Proportional to 49,058.60, 73,442.10 and 43,809.80

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Solution

The fourth proportional to 49,058.60, 73,442.10 and 43,809.80 is: 65,584.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,058.60 : 73,442.10 = 43,809.80 : x
  2. Step 2: Convert to fraction form
    49,058.60/73,442.10 = 43,809.80/x
  3. Step 3: Cross multiply
    49,058.60x = 73,442.10 × 43,809.80
  4. Step 4: Simplify right side
    49,058.60x = 3,217,483,712.58
  5. Step 5: Solve for x
    x = 3,217,483,712.58/49,058.60
  6. Step 6: Final answer
    x = 65,584.50

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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.