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Finding the Fourth Proportional to 382,718.81, 573,723.23 and 169,373.31

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Solution

The fourth proportional to 382,718.81, 573,723.23 and 169,373.31 is: 253,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,718.81 : 573,723.23 = 169,373.31 : x
  2. Step 2: Convert to fraction form
    382,718.81/573,723.23 = 169,373.31/x
  3. Step 3: Cross multiply
    382,718.81x = 573,723.23 × 169,373.31
  4. Step 4: Simplify right side
    382,718.81x = 97,173,401,642.12
  5. Step 5: Solve for x
    x = 97,173,401,642.12/382,718.81
  6. Step 6: Final answer
    x = 253,902.87

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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.