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Finding the Fourth Proportional to 366,000.72, 548,944.92 and 99,782.64

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Solution

The fourth proportional to 366,000.72, 548,944.92 and 99,782.64 is: 149,658.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,000.72 : 548,944.92 = 99,782.64 : x
  2. Step 2: Convert to fraction form
    366,000.72/548,944.92 = 99,782.64/x
  3. Step 3: Cross multiply
    366,000.72x = 548,944.92 × 99,782.64
  4. Step 4: Simplify right side
    366,000.72x = 54,775,173,332.19
  5. Step 5: Solve for x
    x = 54,775,173,332.19/366,000.72
  6. Step 6: Final answer
    x = 149,658.65

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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.