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Finding the Fourth Proportional to 168,779.30, 253,010.55 and 63,668.90

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Solution

The fourth proportional to 168,779.30, 253,010.55 and 63,668.90 is: 95,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,779.30 : 253,010.55 = 63,668.90 : x
  2. Step 2: Convert to fraction form
    168,779.30/253,010.55 = 63,668.90/x
  3. Step 3: Cross multiply
    168,779.30x = 253,010.55 × 63,668.90
  4. Step 4: Simplify right side
    168,779.30x = 16,108,903,406.90
  5. Step 5: Solve for x
    x = 16,108,903,406.90/168,779.30
  6. Step 6: Final answer
    x = 95,443.60

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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.