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Finding the Fourth Proportional to 66,667.80, 99,886.80 and 44,164.44

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Solution

The fourth proportional to 66,667.80, 99,886.80 and 44,164.44 is: 66,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,667.80 : 99,886.80 = 44,164.44 : x
  2. Step 2: Convert to fraction form
    66,667.80/99,886.80 = 44,164.44/x
  3. Step 3: Cross multiply
    66,667.80x = 99,886.80 × 44,164.44
  4. Step 4: Simplify right side
    66,667.80x = 4,411,444,585.39
  5. Step 5: Solve for x
    x = 4,411,444,585.39/66,667.80
  6. Step 6: Final answer
    x = 66,170.54

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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.