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Finding the Fourth Proportional to 363,919.72, 545,804.28 and 97,616.92

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Solution

The fourth proportional to 363,919.72, 545,804.28 and 97,616.92 is: 146,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,919.72 : 545,804.28 = 97,616.92 : x
  2. Step 2: Convert to fraction form
    363,919.72/545,804.28 = 97,616.92/x
  3. Step 3: Cross multiply
    363,919.72x = 545,804.28 × 97,616.92
  4. Step 4: Simplify right side
    363,919.72x = 53,279,732,736.42
  5. Step 5: Solve for x
    x = 53,279,732,736.42/363,919.72
  6. Step 6: Final answer
    x = 146,405.18

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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.