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Finding the Fourth Proportional to 319,268.76, 440,593.86 and 176,033.90

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Solution

The fourth proportional to 319,268.76, 440,593.86 and 176,033.90 is: 242,928.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,268.76 : 440,593.86 = 176,033.90 : x
  2. Step 2: Convert to fraction form
    319,268.76/440,593.86 = 176,033.90/x
  3. Step 3: Cross multiply
    319,268.76x = 440,593.86 × 176,033.90
  4. Step 4: Simplify right side
    319,268.76x = 77,559,453,288.88
  5. Step 5: Solve for x
    x = 77,559,453,288.88/319,268.76
  6. Step 6: Final answer
    x = 242,928.41

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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.