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Finding the Fourth Proportional to 353,158.63, 487,356.44 and 192,013.72

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Solution

The fourth proportional to 353,158.63, 487,356.44 and 192,013.72 is: 264,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,158.63 : 487,356.44 = 192,013.72 : x
  2. Step 2: Convert to fraction form
    353,158.63/487,356.44 = 192,013.72/x
  3. Step 3: Cross multiply
    353,158.63x = 487,356.44 × 192,013.72
  4. Step 4: Simplify right side
    353,158.63x = 93,579,120,831.90
  5. Step 5: Solve for x
    x = 93,579,120,831.90/353,158.63
  6. Step 6: Final answer
    x = 264,977.59

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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.