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Finding the Fourth Proportional to 357,240.16, 492,992.49 and 196,111.72

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Solution

The fourth proportional to 357,240.16, 492,992.49 and 196,111.72 is: 270,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,240.16 : 492,992.49 = 196,111.72 : x
  2. Step 2: Convert to fraction form
    357,240.16/492,992.49 = 196,111.72/x
  3. Step 3: Cross multiply
    357,240.16x = 492,992.49 × 196,111.72
  4. Step 4: Simplify right side
    357,240.16x = 96,681,605,160.98
  5. Step 5: Solve for x
    x = 96,681,605,160.98/357,240.16
  6. Step 6: Final answer
    x = 270,634.76

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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.