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Finding the Fourth Proportional to 103,636.80, 155,454.84 and 44,434.08

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Solution

The fourth proportional to 103,636.80, 155,454.84 and 44,434.08 is: 66,650.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.80 : 155,454.84 = 44,434.08 : x
  2. Step 2: Convert to fraction form
    103,636.80/155,454.84 = 44,434.08/x
  3. Step 3: Cross multiply
    103,636.80x = 155,454.84 × 44,434.08
  4. Step 4: Simplify right side
    103,636.80x = 6,907,492,796.95
  5. Step 5: Solve for x
    x = 6,907,492,796.95/103,636.80
  6. Step 6: Final answer
    x = 66,650.97

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1.5x scale

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.