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Finding the Fourth Proportional to 317,561.28, 476,352 and 159,703.44

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Solution

The fourth proportional to 317,561.28, 476,352 and 159,703.44 is: 239,560.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,561.28 : 476,352 = 159,703.44 : x
  2. Step 2: Convert to fraction form
    317,561.28/476,352 = 159,703.44/x
  3. Step 3: Cross multiply
    317,561.28x = 476,352 × 159,703.44
  4. Step 4: Simplify right side
    317,561.28x = 76,075,053,050.88
  5. Step 5: Solve for x
    x = 76,075,053,050.88/317,561.28
  6. Step 6: Final answer
    x = 239,560.23

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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.