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Finding the Fourth Proportional to 152,447.78, 228,549.56 and 72,445.60

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Solution

The fourth proportional to 152,447.78, 228,549.56 and 72,445.60 is: 108,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,447.78 : 228,549.56 = 72,445.60 : x
  2. Step 2: Convert to fraction form
    152,447.78/228,549.56 = 72,445.60/x
  3. Step 3: Cross multiply
    152,447.78x = 228,549.56 × 72,445.60
  4. Step 4: Simplify right side
    152,447.78x = 16,557,410,003.94
  5. Step 5: Solve for x
    x = 16,557,410,003.94/152,447.78
  6. Step 6: Final answer
    x = 108,610.37

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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.