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Finding the Fourth Proportional to 317,118.33, 475,653.20 and 117,344.79

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Solution

The fourth proportional to 317,118.33, 475,653.20 and 117,344.79 is: 176,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,118.33 : 475,653.20 = 117,344.79 : x
  2. Step 2: Convert to fraction form
    317,118.33/475,653.20 = 117,344.79/x
  3. Step 3: Cross multiply
    317,118.33x = 475,653.20 × 117,344.79
  4. Step 4: Simplify right side
    317,118.33x = 55,815,424,280.10
  5. Step 5: Solve for x
    x = 55,815,424,280.10/317,118.33
  6. Step 6: Final answer
    x = 176,008.19

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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.