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Finding the Fourth Proportional to 317,203.45, 437,669.86 and 181,193.92

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Solution

The fourth proportional to 317,203.45, 437,669.86 and 181,193.92 is: 250,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,203.45 : 437,669.86 = 181,193.92 : x
  2. Step 2: Convert to fraction form
    317,203.45/437,669.86 = 181,193.92/x
  3. Step 3: Cross multiply
    317,203.45x = 437,669.86 × 181,193.92
  4. Step 4: Simplify right side
    317,203.45x = 79,303,117,599.25
  5. Step 5: Solve for x
    x = 79,303,117,599.25/317,203.45
  6. Step 6: Final answer
    x = 250,007.11

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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.