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Finding the Fourth Proportional to 141,220.74, 211,830.94 and 36,039.72

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Solution

The fourth proportional to 141,220.74, 211,830.94 and 36,039.72 is: 54,059.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,220.74 : 211,830.94 = 36,039.72 : x
  2. Step 2: Convert to fraction form
    141,220.74/211,830.94 = 36,039.72/x
  3. Step 3: Cross multiply
    141,220.74x = 211,830.94 × 36,039.72
  4. Step 4: Simplify right side
    141,220.74x = 7,634,327,764.94
  5. Step 5: Solve for x
    x = 7,634,327,764.94/141,220.74
  6. Step 6: Final answer
    x = 54,059.54

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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.