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Finding the Fourth Proportional to 313,991.34, 433,319.48 and 179,881.26

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Solution

The fourth proportional to 313,991.34, 433,319.48 and 179,881.26 is: 248,242.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,991.34 : 433,319.48 = 179,881.26 : x
  2. Step 2: Convert to fraction form
    313,991.34/433,319.48 = 179,881.26/x
  3. Step 3: Cross multiply
    313,991.34x = 433,319.48 × 179,881.26
  4. Step 4: Simplify right side
    313,991.34x = 77,946,054,044.94
  5. Step 5: Solve for x
    x = 77,946,054,044.94/313,991.34
  6. Step 6: Final answer
    x = 248,242.69

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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.