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Finding the Fourth Proportional to 216,493.62, 298,751.79 and 118,375.06

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Solution

The fourth proportional to 216,493.62, 298,751.79 and 118,375.06 is: 163,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,493.62 : 298,751.79 = 118,375.06 : x
  2. Step 2: Convert to fraction form
    216,493.62/298,751.79 = 118,375.06/x
  3. Step 3: Cross multiply
    216,493.62x = 298,751.79 × 118,375.06
  4. Step 4: Simplify right side
    216,493.62x = 35,364,761,066.36
  5. Step 5: Solve for x
    x = 35,364,761,066.36/216,493.62
  6. Step 6: Final answer
    x = 163,352.44

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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.