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Finding the Fourth Proportional to 319,673.61, 441,147.41 and 176,433.65

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Solution

The fourth proportional to 319,673.61, 441,147.41 and 176,433.65 is: 243,477.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,673.61 : 441,147.41 = 176,433.65 : x
  2. Step 2: Convert to fraction form
    319,673.61/441,147.41 = 176,433.65/x
  3. Step 3: Cross multiply
    319,673.61x = 441,147.41 × 176,433.65
  4. Step 4: Simplify right side
    319,673.61x = 77,833,244,646.44
  5. Step 5: Solve for x
    x = 77,833,244,646.44/319,673.61
  6. Step 6: Final answer
    x = 243,477.23

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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.