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Finding the Fourth Proportional to 357,493.88, 493,345.61 and 196,352.68

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Solution

The fourth proportional to 357,493.88, 493,345.61 and 196,352.68 is: 270,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,493.88 : 493,345.61 = 196,352.68 : x
  2. Step 2: Convert to fraction form
    357,493.88/493,345.61 = 196,352.68/x
  3. Step 3: Cross multiply
    357,493.88x = 493,345.61 × 196,352.68
  4. Step 4: Simplify right side
    357,493.88x = 96,869,732,689.73
  5. Step 5: Solve for x
    x = 96,869,732,689.73/357,493.88
  6. Step 6: Final answer
    x = 270,968.93

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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.