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Finding the Fourth Proportional to 117,154.35, 161,673.77 and 63,439.37

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Solution

The fourth proportional to 117,154.35, 161,673.77 and 63,439.37 is: 87,546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,154.35 : 161,673.77 = 63,439.37 : x
  2. Step 2: Convert to fraction form
    117,154.35/161,673.77 = 63,439.37/x
  3. Step 3: Cross multiply
    117,154.35x = 161,673.77 × 63,439.37
  4. Step 4: Simplify right side
    117,154.35x = 10,256,482,114.32
  5. Step 5: Solve for x
    x = 10,256,482,114.32/117,154.35
  6. Step 6: Final answer
    x = 87,546.75

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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.