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Finding the Fourth Proportional to 364,735.81, 547,008.21 and 108,499.34

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Solution

The fourth proportional to 364,735.81, 547,008.21 and 108,499.34 is: 162,720.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,735.81 : 547,008.21 = 108,499.34 : x
  2. Step 2: Convert to fraction form
    364,735.81/547,008.21 = 108,499.34/x
  3. Step 3: Cross multiply
    364,735.81x = 547,008.21 × 108,499.34
  4. Step 4: Simplify right side
    364,735.81x = 59,350,026,821.10
  5. Step 5: Solve for x
    x = 59,350,026,821.10/364,735.81
  6. Step 6: Final answer
    x = 162,720.59

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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.