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Finding the Fourth Proportional to 364,814.30, 547,221.45 and 98,615.90

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Solution

The fourth proportional to 364,814.30, 547,221.45 and 98,615.90 is: 147,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,814.30 : 547,221.45 = 98,615.90 : x
  2. Step 2: Convert to fraction form
    364,814.30/547,221.45 = 98,615.90/x
  3. Step 3: Cross multiply
    364,814.30x = 547,221.45 × 98,615.90
  4. Step 4: Simplify right side
    364,814.30x = 53,964,735,791.06
  5. Step 5: Solve for x
    x = 53,964,735,791.06/364,814.30
  6. Step 6: Final answer
    x = 147,923.85

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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.