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Finding the Fourth Proportional to 504,762.25, 756,979.60 and 167,712.40

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Solution

The fourth proportional to 504,762.25, 756,979.60 and 167,712.40 is: 251,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,762.25 : 756,979.60 = 167,712.40 : x
  2. Step 2: Convert to fraction form
    504,762.25/756,979.60 = 167,712.40/x
  3. Step 3: Cross multiply
    504,762.25x = 756,979.60 × 167,712.40
  4. Step 4: Simplify right side
    504,762.25x = 126,954,865,467.04
  5. Step 5: Solve for x
    x = 126,954,865,467.04/504,762.25
  6. Step 6: Final answer
    x = 251,514.18

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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.