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Finding the Fourth Proportional to 103,630, 155,494.20 and 44,482.60

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Solution

The fourth proportional to 103,630, 155,494.20 and 44,482.60 is: 66,745.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630 : 155,494.20 = 44,482.60 : x
  2. Step 2: Convert to fraction form
    103,630/155,494.20 = 44,482.60/x
  3. Step 3: Cross multiply
    103,630x = 155,494.20 × 44,482.60
  4. Step 4: Simplify right side
    103,630x = 6,916,786,300.92
  5. Step 5: Solve for x
    x = 6,916,786,300.92/103,630
  6. Step 6: Final answer
    x = 66,745.02

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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.