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Finding the Fourth Proportional to 317,751.69, 476,627.09 and 81,094.36

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Solution

The fourth proportional to 317,751.69, 476,627.09 and 81,094.36 is: 121,641.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,751.69 : 476,627.09 = 81,094.36 : x
  2. Step 2: Convert to fraction form
    317,751.69/476,627.09 = 81,094.36/x
  3. Step 3: Cross multiply
    317,751.69x = 476,627.09 × 81,094.36
  4. Step 4: Simplify right side
    317,751.69x = 38,651,768,822.21
  5. Step 5: Solve for x
    x = 38,651,768,822.21/317,751.69
  6. Step 6: Final answer
    x = 121,641.43

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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.