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Finding the Fourth Proportional to 79,059.42, 118,584.84 and 19,894.98

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Solution

The fourth proportional to 79,059.42, 118,584.84 and 19,894.98 is: 29,841.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,059.42 : 118,584.84 = 19,894.98 : x
  2. Step 2: Convert to fraction form
    79,059.42/118,584.84 = 19,894.98/x
  3. Step 3: Cross multiply
    79,059.42x = 118,584.84 × 19,894.98
  4. Step 4: Simplify right side
    79,059.42x = 2,359,243,020.10
  5. Step 5: Solve for x
    x = 2,359,243,020.10/79,059.42
  6. Step 6: Final answer
    x = 29,841.39

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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.