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Finding the Fourth Proportional to 363,410.15, 545,081.81 and 97,161.12

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Solution

The fourth proportional to 363,410.15, 545,081.81 and 97,161.12 is: 145,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,410.15 : 545,081.81 = 97,161.12 : x
  2. Step 2: Convert to fraction form
    363,410.15/545,081.81 = 97,161.12/x
  3. Step 3: Cross multiply
    363,410.15x = 545,081.81 × 97,161.12
  4. Step 4: Simplify right side
    363,410.15x = 52,960,758,665.42
  5. Step 5: Solve for x
    x = 52,960,758,665.42/363,410.15
  6. Step 6: Final answer
    x = 145,732.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.