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Finding the Fourth Proportional to 317,445.28, 476,195.88 and 117,767.80

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Solution

The fourth proportional to 317,445.28, 476,195.88 and 117,767.80 is: 176,662.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,445.28 : 476,195.88 = 117,767.80 : x
  2. Step 2: Convert to fraction form
    317,445.28/476,195.88 = 117,767.80/x
  3. Step 3: Cross multiply
    317,445.28x = 476,195.88 × 117,767.80
  4. Step 4: Simplify right side
    317,445.28x = 56,080,541,156.66
  5. Step 5: Solve for x
    x = 56,080,541,156.66/317,445.28
  6. Step 6: Final answer
    x = 176,662.07

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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.