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Finding the Fourth Proportional to 103,646.88, 155,453.70 and 37,074.60

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Solution

The fourth proportional to 103,646.88, 155,453.70 and 37,074.60 is: 55,605.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,646.88 : 155,453.70 = 37,074.60 : x
  2. Step 2: Convert to fraction form
    103,646.88/155,453.70 = 37,074.60/x
  3. Step 3: Cross multiply
    103,646.88x = 155,453.70 × 37,074.60
  4. Step 4: Simplify right side
    103,646.88x = 5,763,383,746.02
  5. Step 5: Solve for x
    x = 5,763,383,746.02/103,646.88
  6. Step 6: Final answer
    x = 55,605.96

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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.