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Finding the Fourth Proportional to 161,767.50, 223,212.90 and 93,771.21

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Solution

The fourth proportional to 161,767.50, 223,212.90 and 93,771.21 is: 129,389.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,767.50 : 223,212.90 = 93,771.21 : x
  2. Step 2: Convert to fraction form
    161,767.50/223,212.90 = 93,771.21/x
  3. Step 3: Cross multiply
    161,767.50x = 223,212.90 × 93,771.21
  4. Step 4: Simplify right side
    161,767.50x = 20,930,943,720.61
  5. Step 5: Solve for x
    x = 20,930,943,720.61/161,767.50
  6. Step 6: Final answer
    x = 129,389.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.