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Finding the Fourth Proportional to 105,805.58, 158,770.44 and 39,291.89

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Solution

The fourth proportional to 105,805.58, 158,770.44 and 39,291.89 is: 58,960.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,805.58 : 158,770.44 = 39,291.89 : x
  2. Step 2: Convert to fraction form
    105,805.58/158,770.44 = 39,291.89/x
  3. Step 3: Cross multiply
    105,805.58x = 158,770.44 × 39,291.89
  4. Step 4: Simplify right side
    105,805.58x = 6,238,390,663.73
  5. Step 5: Solve for x
    x = 6,238,390,663.73/105,805.58
  6. Step 6: Final answer
    x = 58,960.89

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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.