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Finding the Fourth Proportional to 102,993.91, 154,366.10 and 43,705.03

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Solution

The fourth proportional to 102,993.91, 154,366.10 and 43,705.03 is: 65,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,993.91 : 154,366.10 = 43,705.03 : x
  2. Step 2: Convert to fraction form
    102,993.91/154,366.10 = 43,705.03/x
  3. Step 3: Cross multiply
    102,993.91x = 154,366.10 × 43,705.03
  4. Step 4: Simplify right side
    102,993.91x = 6,746,574,259.65
  5. Step 5: Solve for x
    x = 6,746,574,259.65/102,993.91
  6. Step 6: Final answer
    x = 65,504.60

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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.