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Finding the Fourth Proportional to 117,199.04, 161,723.10 and 65,506.60

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Solution

The fourth proportional to 117,199.04, 161,723.10 and 65,506.60 is: 90,392.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,199.04 : 161,723.10 = 65,506.60 : x
  2. Step 2: Convert to fraction form
    117,199.04/161,723.10 = 65,506.60/x
  3. Step 3: Cross multiply
    117,199.04x = 161,723.10 × 65,506.60
  4. Step 4: Simplify right side
    117,199.04x = 10,593,930,422.46
  5. Step 5: Solve for x
    x = 10,593,930,422.46/117,199.04
  6. Step 6: Final answer
    x = 90,392.64

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Why These Related Problems?

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