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Finding the Fourth Proportional to 317,208.98, 437,754 and 173,967.78

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Solution

The fourth proportional to 317,208.98, 437,754 and 173,967.78 is: 240,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,208.98 : 437,754 = 173,967.78 : x
  2. Step 2: Convert to fraction form
    317,208.98/437,754 = 173,967.78/x
  3. Step 3: Cross multiply
    317,208.98x = 437,754 × 173,967.78
  4. Step 4: Simplify right side
    317,208.98x = 76,155,091,566.12
  5. Step 5: Solve for x
    x = 76,155,091,566.12/317,208.98
  6. Step 6: Final answer
    x = 240,078.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.