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Finding the Fourth Proportional to 117,239.57, 175,859.43 and 28,492.47

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Solution

The fourth proportional to 117,239.57, 175,859.43 and 28,492.47 is: 42,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,239.57 : 175,859.43 = 28,492.47 : x
  2. Step 2: Convert to fraction form
    117,239.57/175,859.43 = 28,492.47/x
  3. Step 3: Cross multiply
    117,239.57x = 175,859.43 × 28,492.47
  4. Step 4: Simplify right side
    117,239.57x = 5,010,669,533.49
  5. Step 5: Solve for x
    x = 5,010,669,533.49/117,239.57
  6. Step 6: Final answer
    x = 42,738.73

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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.