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Finding the Fourth Proportional to 94,989.96, 142,533.54 and 38,871.54

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Solution

The fourth proportional to 94,989.96, 142,533.54 and 38,871.54 is: 58,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,989.96 : 142,533.54 = 38,871.54 : x
  2. Step 2: Convert to fraction form
    94,989.96/142,533.54 = 38,871.54/x
  3. Step 3: Cross multiply
    94,989.96x = 142,533.54 × 38,871.54
  4. Step 4: Simplify right side
    94,989.96x = 5,540,498,201.45
  5. Step 5: Solve for x
    x = 5,540,498,201.45/94,989.96
  6. Step 6: Final answer
    x = 58,327.20

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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.