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Finding the Fourth Proportional to 85,509, 118,004.94 and 47,783.34

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Solution

The fourth proportional to 85,509, 118,004.94 and 47,783.34 is: 65,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,509 : 118,004.94 = 47,783.34 : x
  2. Step 2: Convert to fraction form
    85,509/118,004.94 = 47,783.34/x
  3. Step 3: Cross multiply
    85,509x = 118,004.94 × 47,783.34
  4. Step 4: Simplify right side
    85,509x = 5,638,670,169.70
  5. Step 5: Solve for x
    x = 5,638,670,169.70/85,509
  6. Step 6: Final answer
    x = 65,942.42

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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.