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Finding the Fourth Proportional to 358,333.16, 494,489.29 and 197,188.12

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Solution

The fourth proportional to 358,333.16, 494,489.29 and 197,188.12 is: 272,113.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,333.16 : 494,489.29 = 197,188.12 : x
  2. Step 2: Convert to fraction form
    358,333.16/494,489.29 = 197,188.12/x
  3. Step 3: Cross multiply
    358,333.16x = 494,489.29 × 197,188.12
  4. Step 4: Simplify right side
    358,333.16x = 97,507,409,996.85
  5. Step 5: Solve for x
    x = 97,507,409,996.85/358,333.16
  6. Step 6: Final answer
    x = 272,113.83

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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.