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Finding the Fourth Proportional to 117,213.84, 175,818.30 and 28,467.78

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Solution

The fourth proportional to 117,213.84, 175,818.30 and 28,467.78 is: 42,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,213.84 : 175,818.30 = 28,467.78 : x
  2. Step 2: Convert to fraction form
    117,213.84/175,818.30 = 28,467.78/x
  3. Step 3: Cross multiply
    117,213.84x = 175,818.30 × 28,467.78
  4. Step 4: Simplify right side
    117,213.84x = 5,005,156,684.37
  5. Step 5: Solve for x
    x = 5,005,156,684.37/117,213.84
  6. Step 6: Final answer
    x = 42,701.07

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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.