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Finding the Fourth Proportional to 213,595.72, 294,736.98 and 118,102.84

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Solution

The fourth proportional to 213,595.72, 294,736.98 and 118,102.84 is: 162,968.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,595.72 : 294,736.98 = 118,102.84 : x
  2. Step 2: Convert to fraction form
    213,595.72/294,736.98 = 118,102.84/x
  3. Step 3: Cross multiply
    213,595.72x = 294,736.98 × 118,102.84
  4. Step 4: Simplify right side
    213,595.72x = 34,809,274,391.02
  5. Step 5: Solve for x
    x = 34,809,274,391.02/213,595.72
  6. Step 6: Final answer
    x = 162,968.03

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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.