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Finding the Fourth Proportional to 103,506.60, 155,259.90 and 96,945.60

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Solution

The fourth proportional to 103,506.60, 155,259.90 and 96,945.60 is: 145,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,506.60 : 155,259.90 = 96,945.60 : x
  2. Step 2: Convert to fraction form
    103,506.60/155,259.90 = 96,945.60/x
  3. Step 3: Cross multiply
    103,506.60x = 155,259.90 × 96,945.60
  4. Step 4: Simplify right side
    103,506.60x = 15,051,764,161.44
  5. Step 5: Solve for x
    x = 15,051,764,161.44/103,506.60
  6. Step 6: Final answer
    x = 145,418.40

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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.