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Finding the Fourth Proportional to 535,851.90, 803,485.85 and 161,826.30

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Solution

The fourth proportional to 535,851.90, 803,485.85 and 161,826.30 is: 242,651.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,851.90 : 803,485.85 = 161,826.30 : x
  2. Step 2: Convert to fraction form
    535,851.90/803,485.85 = 161,826.30/x
  3. Step 3: Cross multiply
    535,851.90x = 803,485.85 × 161,826.30
  4. Step 4: Simplify right side
    535,851.90x = 130,025,142,207.86
  5. Step 5: Solve for x
    x = 130,025,142,207.86/535,851.90
  6. Step 6: Final answer
    x = 242,651.27

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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.