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Finding the Fourth Proportional to 319,635.47, 441,096.05 and 176,394.49

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Solution

The fourth proportional to 319,635.47, 441,096.05 and 176,394.49 is: 243,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,635.47 : 441,096.05 = 176,394.49 : x
  2. Step 2: Convert to fraction form
    319,635.47/441,096.05 = 176,394.49/x
  3. Step 3: Cross multiply
    319,635.47x = 441,096.05 × 176,394.49
  4. Step 4: Simplify right side
    319,635.47x = 77,806,912,780.76
  5. Step 5: Solve for x
    x = 77,806,912,780.76/319,635.47
  6. Step 6: Final answer
    x = 243,423.90

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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.