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Finding the Fourth Proportional to 117,279.98, 175,920.09 and 28,533.48

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Solution

The fourth proportional to 117,279.98, 175,920.09 and 28,533.48 is: 42,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,279.98 : 175,920.09 = 28,533.48 : x
  2. Step 2: Convert to fraction form
    117,279.98/175,920.09 = 28,533.48/x
  3. Step 3: Cross multiply
    117,279.98x = 175,920.09 × 28,533.48
  4. Step 4: Simplify right side
    117,279.98x = 5,019,612,369.61
  5. Step 5: Solve for x
    x = 5,019,612,369.61/117,279.98
  6. Step 6: Final answer
    x = 42,800.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.