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Finding the Fourth Proportional to 329,768.36, 455,090.66 and 186,525.54

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Solution

The fourth proportional to 329,768.36, 455,090.66 and 186,525.54 is: 257,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,768.36 : 455,090.66 = 186,525.54 : x
  2. Step 2: Convert to fraction form
    329,768.36/455,090.66 = 186,525.54/x
  3. Step 3: Cross multiply
    329,768.36x = 455,090.66 × 186,525.54
  4. Step 4: Simplify right side
    329,768.36x = 84,886,031,105.46
  5. Step 5: Solve for x
    x = 84,886,031,105.46/329,768.36
  6. Step 6: Final answer
    x = 257,411.08

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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.