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Finding the Fourth Proportional to 105,651.69, 158,477.77 and 26,772.07

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Solution

The fourth proportional to 105,651.69, 158,477.77 and 26,772.07 is: 40,158.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,651.69 : 158,477.77 = 26,772.07 : x
  2. Step 2: Convert to fraction form
    105,651.69/158,477.77 = 26,772.07/x
  3. Step 3: Cross multiply
    105,651.69x = 158,477.77 × 26,772.07
  4. Step 4: Simplify right side
    105,651.69x = 4,242,777,735.71
  5. Step 5: Solve for x
    x = 4,242,777,735.71/105,651.69
  6. Step 6: Final answer
    x = 40,158.16

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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.