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Finding the Fourth Proportional to 61,154.81, 91,726.06 and 16,786.03

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Solution

The fourth proportional to 61,154.81, 91,726.06 and 16,786.03 is: 25,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,154.81 : 91,726.06 = 16,786.03 : x
  2. Step 2: Convert to fraction form
    61,154.81/91,726.06 = 16,786.03/x
  3. Step 3: Cross multiply
    61,154.81x = 91,726.06 × 16,786.03
  4. Step 4: Simplify right side
    61,154.81x = 1,539,716,311.01
  5. Step 5: Solve for x
    x = 1,539,716,311.01/61,154.81
  6. Step 6: Final answer
    x = 25,177.35

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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.