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Finding the Fourth Proportional to 317,323.91, 437,945.81 and 181,326.67

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Solution

The fourth proportional to 317,323.91, 437,945.81 and 181,326.67 is: 250,252.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,323.91 : 437,945.81 = 181,326.67 : x
  2. Step 2: Convert to fraction form
    317,323.91/437,945.81 = 181,326.67/x
  3. Step 3: Cross multiply
    317,323.91x = 437,945.81 × 181,326.67
  4. Step 4: Simplify right side
    317,323.91x = 79,411,253,366.25
  5. Step 5: Solve for x
    x = 79,411,253,366.25/317,323.91
  6. Step 6: Final answer
    x = 250,252.98

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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.