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Finding the Fourth Proportional to 317,740.88, 476,670 and 104,520.80

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Solution

The fourth proportional to 317,740.88, 476,670 and 104,520.80 is: 156,800.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,740.88 : 476,670 = 104,520.80 : x
  2. Step 2: Convert to fraction form
    317,740.88/476,670 = 104,520.80/x
  3. Step 3: Cross multiply
    317,740.88x = 476,670 × 104,520.80
  4. Step 4: Simplify right side
    317,740.88x = 49,821,929,736
  5. Step 5: Solve for x
    x = 49,821,929,736/317,740.88
  6. Step 6: Final answer
    x = 156,800.50

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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.