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Finding the Fourth Proportional to 146,205, 201,763.51 and 79,137

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Solution

The fourth proportional to 146,205, 201,763.51 and 79,137 is: 109,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,205 : 201,763.51 = 79,137 : x
  2. Step 2: Convert to fraction form
    146,205/201,763.51 = 79,137/x
  3. Step 3: Cross multiply
    146,205x = 201,763.51 × 79,137
  4. Step 4: Simplify right side
    146,205x = 15,966,958,693.03
  5. Step 5: Solve for x
    x = 15,966,958,693.03/146,205
  6. Step 6: Final answer
    x = 109,209.39

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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.