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Finding the Fourth Proportional to 151,503.80, 227,061.30 and 72,447.80

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Solution

The fourth proportional to 151,503.80, 227,061.30 and 72,447.80 is: 108,578.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,503.80 : 227,061.30 = 72,447.80 : x
  2. Step 2: Convert to fraction form
    151,503.80/227,061.30 = 72,447.80/x
  3. Step 3: Cross multiply
    151,503.80x = 227,061.30 × 72,447.80
  4. Step 4: Simplify right side
    151,503.80x = 16,450,091,650.14
  5. Step 5: Solve for x
    x = 16,450,091,650.14/151,503.80
  6. Step 6: Final answer
    x = 108,578.74

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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.