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Finding the Fourth Proportional to 258,100.29, 356,235.33 and 143,418.33

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Solution

The fourth proportional to 258,100.29, 356,235.33 and 143,418.33 is: 197,948.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,100.29 : 356,235.33 = 143,418.33 : x
  2. Step 2: Convert to fraction form
    258,100.29/356,235.33 = 143,418.33/x
  3. Step 3: Cross multiply
    258,100.29x = 356,235.33 × 143,418.33
  4. Step 4: Simplify right side
    258,100.29x = 51,090,676,115.60
  5. Step 5: Solve for x
    x = 51,090,676,115.60/258,100.29
  6. Step 6: Final answer
    x = 197,948.93

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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.