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Finding the Fourth Proportional to 319,605.08, 441,064.31 and 176,374.40

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Solution

The fourth proportional to 319,605.08, 441,064.31 and 176,374.40 is: 243,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,605.08 : 441,064.31 = 176,374.40 : x
  2. Step 2: Convert to fraction form
    319,605.08/441,064.31 = 176,374.40/x
  3. Step 3: Cross multiply
    319,605.08x = 441,064.31 × 176,374.40
  4. Step 4: Simplify right side
    319,605.08x = 77,792,449,950.47
  5. Step 5: Solve for x
    x = 77,792,449,950.47/319,605.08
  6. Step 6: Final answer
    x = 243,401.80

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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.