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Finding the Fourth Proportional to 408,094.36, 612,140.76 and 108,575.26

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Solution

The fourth proportional to 408,094.36, 612,140.76 and 108,575.26 is: 162,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,094.36 : 612,140.76 = 108,575.26 : x
  2. Step 2: Convert to fraction form
    408,094.36/612,140.76 = 108,575.26/x
  3. Step 3: Cross multiply
    408,094.36x = 612,140.76 × 108,575.26
  4. Step 4: Simplify right side
    408,094.36x = 66,463,342,173.60
  5. Step 5: Solve for x
    x = 66,463,342,173.60/408,094.36
  6. Step 6: Final answer
    x = 162,862.68

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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.