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Finding the Fourth Proportional to 134,449.99, 185,537.59 and 74,020.03

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Solution

The fourth proportional to 134,449.99, 185,537.59 and 74,020.03 is: 102,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,449.99 : 185,537.59 = 74,020.03 : x
  2. Step 2: Convert to fraction form
    134,449.99/185,537.59 = 74,020.03/x
  3. Step 3: Cross multiply
    134,449.99x = 185,537.59 × 74,020.03
  4. Step 4: Simplify right side
    134,449.99x = 13,733,497,977.93
  5. Step 5: Solve for x
    x = 13,733,497,977.93/134,449.99
  6. Step 6: Final answer
    x = 102,145.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.