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Finding the Fourth Proportional to 535,863.60, 803,139.30 and 236,025.90

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Solution

The fourth proportional to 535,863.60, 803,139.30 and 236,025.90 is: 353,749.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,863.60 : 803,139.30 = 236,025.90 : x
  2. Step 2: Convert to fraction form
    535,863.60/803,139.30 = 236,025.90/x
  3. Step 3: Cross multiply
    535,863.60x = 803,139.30 × 236,025.90
  4. Step 4: Simplify right side
    535,863.60x = 189,561,676,107.87
  5. Step 5: Solve for x
    x = 189,561,676,107.87/535,863.60
  6. Step 6: Final answer
    x = 353,749.86

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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.