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Finding the Fourth Proportional to 151,978.70, 228,032.85 and 73,052.30

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Solution

The fourth proportional to 151,978.70, 228,032.85 and 73,052.30 is: 109,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,978.70 : 228,032.85 = 73,052.30 : x
  2. Step 2: Convert to fraction form
    151,978.70/228,032.85 = 73,052.30/x
  3. Step 3: Cross multiply
    151,978.70x = 228,032.85 × 73,052.30
  4. Step 4: Simplify right side
    151,978.70x = 16,658,324,168.06
  5. Step 5: Solve for x
    x = 16,658,324,168.06/151,978.70
  6. Step 6: Final answer
    x = 109,609.60

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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.