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Finding the Fourth Proportional to 134,406.96, 185,474.90 and 73,976.06

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Solution

The fourth proportional to 134,406.96, 185,474.90 and 73,976.06 is: 102,083.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,406.96 : 185,474.90 = 73,976.06 : x
  2. Step 2: Convert to fraction form
    134,406.96/185,474.90 = 73,976.06/x
  3. Step 3: Cross multiply
    134,406.96x = 185,474.90 × 73,976.06
  4. Step 4: Simplify right side
    134,406.96x = 13,720,702,330.89
  5. Step 5: Solve for x
    x = 13,720,702,330.89/134,406.96
  6. Step 6: Final answer
    x = 102,083.27

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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.