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Finding the Fourth Proportional to 365,055.56, 546,251.15 and 215,367.56

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Solution

The fourth proportional to 365,055.56, 546,251.15 and 215,367.56 is: 322,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,055.56 : 546,251.15 = 215,367.56 : x
  2. Step 2: Convert to fraction form
    365,055.56/546,251.15 = 215,367.56/x
  3. Step 3: Cross multiply
    365,055.56x = 546,251.15 × 215,367.56
  4. Step 4: Simplify right side
    365,055.56x = 117,644,777,322.69
  5. Step 5: Solve for x
    x = 117,644,777,322.69/365,055.56
  6. Step 6: Final answer
    x = 322,265.40

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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.