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Finding the Fourth Proportional to 61,109.94, 91,661.33 and 16,733.43

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Solution

The fourth proportional to 61,109.94, 91,661.33 and 16,733.43 is: 25,099.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,109.94 : 91,661.33 = 16,733.43 : x
  2. Step 2: Convert to fraction form
    61,109.94/91,661.33 = 16,733.43/x
  3. Step 3: Cross multiply
    61,109.94x = 91,661.33 × 16,733.43
  4. Step 4: Simplify right side
    61,109.94x = 1,533,808,491.10
  5. Step 5: Solve for x
    x = 1,533,808,491.10/61,109.94
  6. Step 6: Final answer
    x = 25,099.16

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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.