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Finding the Fourth Proportional to 74,868.44, 103,318.44 and 43,043.54

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Solution

The fourth proportional to 74,868.44, 103,318.44 and 43,043.54 is: 59,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,868.44 : 103,318.44 = 43,043.54 : x
  2. Step 2: Convert to fraction form
    74,868.44/103,318.44 = 43,043.54/x
  3. Step 3: Cross multiply
    74,868.44x = 103,318.44 × 43,043.54
  4. Step 4: Simplify right side
    74,868.44x = 4,447,191,404.88
  5. Step 5: Solve for x
    x = 4,447,191,404.88/74,868.44
  6. Step 6: Final answer
    x = 59,400.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.