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Finding the Fourth Proportional to 184,643.72, 254,808.42 and 99,760.76

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Solution

The fourth proportional to 184,643.72, 254,808.42 and 99,760.76 is: 137,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,643.72 : 254,808.42 = 99,760.76 : x
  2. Step 2: Convert to fraction form
    184,643.72/254,808.42 = 99,760.76/x
  3. Step 3: Cross multiply
    184,643.72x = 254,808.42 × 99,760.76
  4. Step 4: Simplify right side
    184,643.72x = 25,419,881,633.60
  5. Step 5: Solve for x
    x = 25,419,881,633.60/184,643.72
  6. Step 6: Final answer
    x = 137,669.90

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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.