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Finding the Fourth Proportional to 319,771.64, 441,288.44 and 176,531.76

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Solution

The fourth proportional to 319,771.64, 441,288.44 and 176,531.76 is: 243,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,771.64 : 441,288.44 = 176,531.76 : x
  2. Step 2: Convert to fraction form
    319,771.64/441,288.44 = 176,531.76/x
  3. Step 3: Cross multiply
    319,771.64x = 441,288.44 × 176,531.76
  4. Step 4: Simplify right side
    319,771.64x = 77,901,424,980.85
  5. Step 5: Solve for x
    x = 77,901,424,980.85/319,771.64
  6. Step 6: Final answer
    x = 243,615.80

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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.