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Finding the Fourth Proportional to 69,643.10, 104,291.85 and 55,819.10

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Solution

The fourth proportional to 69,643.10, 104,291.85 and 55,819.10 is: 83,590.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,643.10 : 104,291.85 = 55,819.10 : x
  2. Step 2: Convert to fraction form
    69,643.10/104,291.85 = 55,819.10/x
  3. Step 3: Cross multiply
    69,643.10x = 104,291.85 × 55,819.10
  4. Step 4: Simplify right side
    69,643.10x = 5,821,477,204.34
  5. Step 5: Solve for x
    x = 5,821,477,204.34/69,643.10
  6. Step 6: Final answer
    x = 83,590.15

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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.