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Finding the Fourth Proportional to 121,992.42, 183,006.12 and 37,759.98

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Solution

The fourth proportional to 121,992.42, 183,006.12 and 37,759.98 is: 56,645.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,992.42 : 183,006.12 = 37,759.98 : x
  2. Step 2: Convert to fraction form
    121,992.42/183,006.12 = 37,759.98/x
  3. Step 3: Cross multiply
    121,992.42x = 183,006.12 × 37,759.98
  4. Step 4: Simplify right side
    121,992.42x = 6,910,307,431.08
  5. Step 5: Solve for x
    x = 6,910,307,431.08/121,992.42
  6. Step 6: Final answer
    x = 56,645.38

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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.