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Finding the Fourth Proportional to 110,490.16, 165,669.72 and 43,894.48

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Solution

The fourth proportional to 110,490.16, 165,669.72 and 43,894.48 is: 65,815.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,490.16 : 165,669.72 = 43,894.48 : x
  2. Step 2: Convert to fraction form
    110,490.16/165,669.72 = 43,894.48/x
  3. Step 3: Cross multiply
    110,490.16x = 165,669.72 × 43,894.48
  4. Step 4: Simplify right side
    110,490.16x = 7,271,986,211.15
  5. Step 5: Solve for x
    x = 7,271,986,211.15/110,490.16
  6. Step 6: Final answer
    x = 65,815.69

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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.