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Finding the Fourth Proportional to 151,987.41, 228,020.74 and 88,861.48

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Solution

The fourth proportional to 151,987.41, 228,020.74 and 88,861.48 is: 133,315.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,987.41 : 228,020.74 = 88,861.48 : x
  2. Step 2: Convert to fraction form
    151,987.41/228,020.74 = 88,861.48/x
  3. Step 3: Cross multiply
    151,987.41x = 228,020.74 × 88,861.48
  4. Step 4: Simplify right side
    151,987.41x = 20,262,259,634.89
  5. Step 5: Solve for x
    x = 20,262,259,634.89/151,987.41
  6. Step 6: Final answer
    x = 133,315.38

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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.