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Finding the Fourth Proportional to 219,372.36, 302,734.80 and 118,770.36

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Solution

The fourth proportional to 219,372.36, 302,734.80 and 118,770.36 is: 163,903.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,372.36 : 302,734.80 = 118,770.36 : x
  2. Step 2: Convert to fraction form
    219,372.36/302,734.80 = 118,770.36/x
  3. Step 3: Cross multiply
    219,372.36x = 302,734.80 × 118,770.36
  4. Step 4: Simplify right side
    219,372.36x = 35,955,921,180.53
  5. Step 5: Solve for x
    x = 35,955,921,180.53/219,372.36
  6. Step 6: Final answer
    x = 163,903.61

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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.