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Finding the Fourth Proportional to 79,788.47, 119,669.74 and 37,668.47

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Solution

The fourth proportional to 79,788.47, 119,669.74 and 37,668.47 is: 56,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,788.47 : 119,669.74 = 37,668.47 : x
  2. Step 2: Convert to fraction form
    79,788.47/119,669.74 = 37,668.47/x
  3. Step 3: Cross multiply
    79,788.47x = 119,669.74 × 37,668.47
  4. Step 4: Simplify right side
    79,788.47x = 4,507,775,318.58
  5. Step 5: Solve for x
    x = 4,507,775,318.58/79,788.47
  6. Step 6: Final answer
    x = 56,496.58

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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.