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Finding the Fourth Proportional to 105,885.63, 158,855.99 and 39,344.94

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Solution

The fourth proportional to 105,885.63, 158,855.99 and 39,344.94 is: 59,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,885.63 : 158,855.99 = 39,344.94 : x
  2. Step 2: Convert to fraction form
    105,885.63/158,855.99 = 39,344.94/x
  3. Step 3: Cross multiply
    105,885.63x = 158,855.99 × 39,344.94
  4. Step 4: Simplify right side
    105,885.63x = 6,250,179,198.47
  5. Step 5: Solve for x
    x = 6,250,179,198.47/105,885.63
  6. Step 6: Final answer
    x = 59,027.64

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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.