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Finding the Fourth Proportional to 319,875.72, 441,425.70 and 176,636.94

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Solution

The fourth proportional to 319,875.72, 441,425.70 and 176,636.94 is: 243,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,875.72 : 441,425.70 = 176,636.94 : x
  2. Step 2: Convert to fraction form
    319,875.72/441,425.70 = 176,636.94/x
  3. Step 3: Cross multiply
    319,875.72x = 441,425.70 × 176,636.94
  4. Step 4: Simplify right side
    319,875.72x = 77,972,084,885.36
  5. Step 5: Solve for x
    x = 77,972,084,885.36/319,875.72
  6. Step 6: Final answer
    x = 243,757.43

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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.