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Finding the Fourth Proportional to 504,770.40, 756,991.80 and 167,720.55

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Solution

The fourth proportional to 504,770.40, 756,991.80 and 167,720.55 is: 251,526.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,770.40 : 756,991.80 = 167,720.55 : x
  2. Step 2: Convert to fraction form
    504,770.40/756,991.80 = 167,720.55/x
  3. Step 3: Cross multiply
    504,770.40x = 756,991.80 × 167,720.55
  4. Step 4: Simplify right side
    504,770.40x = 126,963,081,041.49
  5. Step 5: Solve for x
    x = 126,963,081,041.49/504,770.40
  6. Step 6: Final answer
    x = 251,526.40

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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.