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Finding the Fourth Proportional to 141,339.89, 211,926.81 and 57,102.73

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Solution

The fourth proportional to 141,339.89, 211,926.81 and 57,102.73 is: 85,620.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,339.89 : 211,926.81 = 57,102.73 : x
  2. Step 2: Convert to fraction form
    141,339.89/211,926.81 = 57,102.73/x
  3. Step 3: Cross multiply
    141,339.89x = 211,926.81 × 57,102.73
  4. Step 4: Simplify right side
    141,339.89x = 12,101,599,095.51
  5. Step 5: Solve for x
    x = 12,101,599,095.51/141,339.89
  6. Step 6: Final answer
    x = 85,620.55

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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.