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Finding the Fourth Proportional to 74,668.87, 112,008.77 and 29,707.80

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Solution

The fourth proportional to 74,668.87, 112,008.77 and 29,707.80 is: 44,563.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,668.87 : 112,008.77 = 29,707.80 : x
  2. Step 2: Convert to fraction form
    74,668.87/112,008.77 = 29,707.80/x
  3. Step 3: Cross multiply
    74,668.87x = 112,008.77 × 29,707.80
  4. Step 4: Simplify right side
    74,668.87x = 3,327,534,137.41
  5. Step 5: Solve for x
    x = 3,327,534,137.41/74,668.87
  6. Step 6: Final answer
    x = 44,563.87

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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.