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Finding the Fourth Proportional to 317,823.40, 476,735.10 and 168,005.80

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Solution

The fourth proportional to 317,823.40, 476,735.10 and 168,005.80 is: 252,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,823.40 : 476,735.10 = 168,005.80 : x
  2. Step 2: Convert to fraction form
    317,823.40/476,735.10 = 168,005.80/x
  3. Step 3: Cross multiply
    317,823.40x = 476,735.10 × 168,005.80
  4. Step 4: Simplify right side
    317,823.40x = 80,094,261,863.58
  5. Step 5: Solve for x
    x = 80,094,261,863.58/317,823.40
  6. Step 6: Final answer
    x = 252,008.70

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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.