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Finding the Fourth Proportional to 164,732.40, 246,904.20 and 123,130.80

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Solution

The fourth proportional to 164,732.40, 246,904.20 and 123,130.80 is: 184,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,732.40 : 246,904.20 = 123,130.80 : x
  2. Step 2: Convert to fraction form
    164,732.40/246,904.20 = 123,130.80/x
  3. Step 3: Cross multiply
    164,732.40x = 246,904.20 × 123,130.80
  4. Step 4: Simplify right side
    164,732.40x = 30,401,511,669.36
  5. Step 5: Solve for x
    x = 30,401,511,669.36/164,732.40
  6. Step 6: Final answer
    x = 184,550.89

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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.