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Finding the Fourth Proportional to 258,181.88, 356,324.40 and 145,004.64

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Solution

The fourth proportional to 258,181.88, 356,324.40 and 145,004.64 is: 200,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,181.88 : 356,324.40 = 145,004.64 : x
  2. Step 2: Convert to fraction form
    258,181.88/356,324.40 = 145,004.64/x
  3. Step 3: Cross multiply
    258,181.88x = 356,324.40 × 145,004.64
  4. Step 4: Simplify right side
    258,181.88x = 51,668,691,345.22
  5. Step 5: Solve for x
    x = 51,668,691,345.22/258,181.88
  6. Step 6: Final answer
    x = 200,125.17

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1.5x scale

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.