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Finding the Fourth Proportional to 105,651.58, 158,477.37 and 55,040.13

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Solution

The fourth proportional to 105,651.58, 158,477.37 and 55,040.13 is: 82,560.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,651.58 : 158,477.37 = 55,040.13 : x
  2. Step 2: Convert to fraction form
    105,651.58/158,477.37 = 55,040.13/x
  3. Step 3: Cross multiply
    105,651.58x = 158,477.37 × 55,040.13
  4. Step 4: Simplify right side
    105,651.58x = 8,722,614,322.01
  5. Step 5: Solve for x
    x = 8,722,614,322.01/105,651.58
  6. Step 6: Final answer
    x = 82,560.19

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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.