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Finding the Fourth Proportional to 164,386.80, 246,677.40 and 108,388.80

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Solution

The fourth proportional to 164,386.80, 246,677.40 and 108,388.80 is: 162,647.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,386.80 : 246,677.40 = 108,388.80 : x
  2. Step 2: Convert to fraction form
    164,386.80/246,677.40 = 108,388.80/x
  3. Step 3: Cross multiply
    164,386.80x = 246,677.40 × 108,388.80
  4. Step 4: Simplify right side
    164,386.80x = 26,737,067,373.12
  5. Step 5: Solve for x
    x = 26,737,067,373.12/164,386.80
  6. Step 6: Final answer
    x = 162,647.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.