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Finding the Fourth Proportional to 317,663.87, 476,554.26 and 104,443.80

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Solution

The fourth proportional to 317,663.87, 476,554.26 and 104,443.80 is: 156,684.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,663.87 : 476,554.26 = 104,443.80 : x
  2. Step 2: Convert to fraction form
    317,663.87/476,554.26 = 104,443.80/x
  3. Step 3: Cross multiply
    317,663.87x = 476,554.26 × 104,443.80
  4. Step 4: Simplify right side
    317,663.87x = 49,773,137,820.59
  5. Step 5: Solve for x
    x = 49,773,137,820.59/317,663.87
  6. Step 6: Final answer
    x = 156,684.92

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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.