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Finding the Fourth Proportional to 404,272.80, 606,482.10 and 167,639.40

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Solution

The fourth proportional to 404,272.80, 606,482.10 and 167,639.40 is: 251,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,272.80 : 606,482.10 = 167,639.40 : x
  2. Step 2: Convert to fraction form
    404,272.80/606,482.10 = 167,639.40/x
  3. Step 3: Cross multiply
    404,272.80x = 606,482.10 × 167,639.40
  4. Step 4: Simplify right side
    404,272.80x = 101,670,295,354.74
  5. Step 5: Solve for x
    x = 101,670,295,354.74/404,272.80
  6. Step 6: Final answer
    x = 251,489.33

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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.