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Finding the Fourth Proportional to 353,184.65, 487,391.43 and 192,039.76

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Solution

The fourth proportional to 353,184.65, 487,391.43 and 192,039.76 is: 265,013.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,184.65 : 487,391.43 = 192,039.76 : x
  2. Step 2: Convert to fraction form
    353,184.65/487,391.43 = 192,039.76/x
  3. Step 3: Cross multiply
    353,184.65x = 487,391.43 × 192,039.76
  4. Step 4: Simplify right side
    353,184.65x = 93,598,529,846.10
  5. Step 5: Solve for x
    x = 93,598,529,846.10/353,184.65
  6. Step 6: Final answer
    x = 265,013.02

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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.