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Finding the Fourth Proportional to 134,644.34, 201,904.42 and 39,840.62

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Solution

The fourth proportional to 134,644.34, 201,904.42 and 39,840.62 is: 59,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,644.34 : 201,904.42 = 39,840.62 : x
  2. Step 2: Convert to fraction form
    134,644.34/201,904.42 = 39,840.62/x
  3. Step 3: Cross multiply
    134,644.34x = 201,904.42 × 39,840.62
  4. Step 4: Simplify right side
    134,644.34x = 8,043,997,273.54
  5. Step 5: Solve for x
    x = 8,043,997,273.54/134,644.34
  6. Step 6: Final answer
    x = 59,742.56

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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.