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Finding the Fourth Proportional to 117,212.80, 175,850.96 and 38,316.64

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Solution

The fourth proportional to 117,212.80, 175,850.96 and 38,316.64 is: 57,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212.80 : 175,850.96 = 38,316.64 : x
  2. Step 2: Convert to fraction form
    117,212.80/175,850.96 = 38,316.64/x
  3. Step 3: Cross multiply
    117,212.80x = 175,850.96 × 38,316.64
  4. Step 4: Simplify right side
    117,212.80x = 6,738,017,927.97
  5. Step 5: Solve for x
    x = 6,738,017,927.97/117,212.80
  6. Step 6: Final answer
    x = 57,485.34

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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.