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Finding the Fourth Proportional to 103,690.60, 155,564.70 and 44,554.60

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Solution

The fourth proportional to 103,690.60, 155,564.70 and 44,554.60 is: 66,844.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690.60 : 155,564.70 = 44,554.60 : x
  2. Step 2: Convert to fraction form
    103,690.60/155,564.70 = 44,554.60/x
  3. Step 3: Cross multiply
    103,690.60x = 155,564.70 × 44,554.60
  4. Step 4: Simplify right side
    103,690.60x = 6,931,122,982.62
  5. Step 5: Solve for x
    x = 6,931,122,982.62/103,690.60
  6. Step 6: Final answer
    x = 66,844.28

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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.