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Finding the Fourth Proportional to 432,170.85, 648,207.75 and 165,744.45

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Solution

The fourth proportional to 432,170.85, 648,207.75 and 165,744.45 is: 248,598.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,170.85 : 648,207.75 = 165,744.45 : x
  2. Step 2: Convert to fraction form
    432,170.85/648,207.75 = 165,744.45/x
  3. Step 3: Cross multiply
    432,170.85x = 648,207.75 × 165,744.45
  4. Step 4: Simplify right side
    432,170.85x = 107,436,837,009.49
  5. Step 5: Solve for x
    x = 107,436,837,009.49/432,170.85
  6. Step 6: Final answer
    x = 248,598.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.