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Finding the Fourth Proportional to 164,065.40, 246,098.10 and 137,821.40

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Solution

The fourth proportional to 164,065.40, 246,098.10 and 137,821.40 is: 206,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,065.40 : 246,098.10 = 137,821.40 : x
  2. Step 2: Convert to fraction form
    164,065.40/246,098.10 = 137,821.40/x
  3. Step 3: Cross multiply
    164,065.40x = 246,098.10 × 137,821.40
  4. Step 4: Simplify right side
    164,065.40x = 33,917,584,679.34
  5. Step 5: Solve for x
    x = 33,917,584,679.34/164,065.40
  6. Step 6: Final answer
    x = 206,732.10

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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.