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Finding the Fourth Proportional to 219,496.50, 302,905.17 and 118,894.50

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Solution

The fourth proportional to 219,496.50, 302,905.17 and 118,894.50 is: 164,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,496.50 : 302,905.17 = 118,894.50 : x
  2. Step 2: Convert to fraction form
    219,496.50/302,905.17 = 118,894.50/x
  3. Step 3: Cross multiply
    219,496.50x = 302,905.17 × 118,894.50
  4. Step 4: Simplify right side
    219,496.50x = 36,013,758,734.57
  5. Step 5: Solve for x
    x = 36,013,758,734.57/219,496.50
  6. Step 6: Final answer
    x = 164,074.41

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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.