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Finding the Fourth Proportional to 407,384.55, 611,112.38 and 167,513.04

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Solution

The fourth proportional to 407,384.55, 611,112.38 and 167,513.04 is: 251,284.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,384.55 : 611,112.38 = 167,513.04 : x
  2. Step 2: Convert to fraction form
    407,384.55/611,112.38 = 167,513.04/x
  3. Step 3: Cross multiply
    407,384.55x = 611,112.38 × 167,513.04
  4. Step 4: Simplify right side
    407,384.55x = 102,369,291,717.87
  5. Step 5: Solve for x
    x = 102,369,291,717.87/407,384.55
  6. Step 6: Final answer
    x = 251,284.18

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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.