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Finding the Fourth Proportional to 105,939.30, 158,908.80 and 27,053.58

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Solution

The fourth proportional to 105,939.30, 158,908.80 and 27,053.58 is: 40,580.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,939.30 : 158,908.80 = 27,053.58 : x
  2. Step 2: Convert to fraction form
    105,939.30/158,908.80 = 27,053.58/x
  3. Step 3: Cross multiply
    105,939.30x = 158,908.80 × 27,053.58
  4. Step 4: Simplify right side
    105,939.30x = 4,299,051,933.50
  5. Step 5: Solve for x
    x = 4,299,051,933.50/105,939.30
  6. Step 6: Final answer
    x = 40,580.33

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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.