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Finding the Fourth Proportional to 104,993.10, 157,448.70 and 45,788.40

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Solution

The fourth proportional to 104,993.10, 157,448.70 and 45,788.40 is: 68,664.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,993.10 : 157,448.70 = 45,788.40 : x
  2. Step 2: Convert to fraction form
    104,993.10/157,448.70 = 45,788.40/x
  3. Step 3: Cross multiply
    104,993.10x = 157,448.70 × 45,788.40
  4. Step 4: Simplify right side
    104,993.10x = 7,209,324,055.08
  5. Step 5: Solve for x
    x = 7,209,324,055.08/104,993.10
  6. Step 6: Final answer
    x = 68,664.74

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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.