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Finding the Fourth Proportional to 319,792.96, 441,314.94 and 176,553.28

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Solution

The fourth proportional to 319,792.96, 441,314.94 and 176,553.28 is: 243,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,792.96 : 441,314.94 = 176,553.28 : x
  2. Step 2: Convert to fraction form
    319,792.96/441,314.94 = 176,553.28/x
  3. Step 3: Cross multiply
    319,792.96x = 441,314.94 × 176,553.28
  4. Step 4: Simplify right side
    319,792.96x = 77,915,600,170.00
  5. Step 5: Solve for x
    x = 77,915,600,170.00/319,792.96
  6. Step 6: Final answer
    x = 243,643.89

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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.