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Finding the Fourth Proportional to 258,593.80, 356,908.59 and 161,842.65

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Solution

The fourth proportional to 258,593.80, 356,908.59 and 161,842.65 is: 223,373.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,593.80 : 356,908.59 = 161,842.65 : x
  2. Step 2: Convert to fraction form
    258,593.80/356,908.59 = 161,842.65/x
  3. Step 3: Cross multiply
    258,593.80x = 356,908.59 × 161,842.65
  4. Step 4: Simplify right side
    258,593.80x = 57,763,032,013.36
  5. Step 5: Solve for x
    x = 57,763,032,013.36/258,593.80
  6. Step 6: Final answer
    x = 223,373.62

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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.