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Finding the Fourth Proportional to 329,994, 455,391.72 and 179,091

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Solution

The fourth proportional to 329,994, 455,391.72 and 179,091 is: 247,145.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,994 : 455,391.72 = 179,091 : x
  2. Step 2: Convert to fraction form
    329,994/455,391.72 = 179,091/x
  3. Step 3: Cross multiply
    329,994x = 455,391.72 × 179,091
  4. Step 4: Simplify right side
    329,994x = 81,556,558,526.52
  5. Step 5: Solve for x
    x = 81,556,558,526.52/329,994
  6. Step 6: Final answer
    x = 247,145.58

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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.