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Finding the Fourth Proportional to 74,487.52, 102,801.34 and 44,272.54

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Solution

The fourth proportional to 74,487.52, 102,801.34 and 44,272.54 is: 61,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,487.52 : 102,801.34 = 44,272.54 : x
  2. Step 2: Convert to fraction form
    74,487.52/102,801.34 = 44,272.54/x
  3. Step 3: Cross multiply
    74,487.52x = 102,801.34 × 44,272.54
  4. Step 4: Simplify right side
    74,487.52x = 4,551,276,621.05
  5. Step 5: Solve for x
    x = 4,551,276,621.05/74,487.52
  6. Step 6: Final answer
    x = 61,101.20

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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.