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Finding the Fourth Proportional to 67,203.90, 100,779.30 and 25,060.86

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Solution

The fourth proportional to 67,203.90, 100,779.30 and 25,060.86 is: 37,581.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,203.90 : 100,779.30 = 25,060.86 : x
  2. Step 2: Convert to fraction form
    67,203.90/100,779.30 = 25,060.86/x
  3. Step 3: Cross multiply
    67,203.90x = 100,779.30 × 25,060.86
  4. Step 4: Simplify right side
    67,203.90x = 2,525,615,928.20
  5. Step 5: Solve for x
    x = 2,525,615,928.20/67,203.90
  6. Step 6: Final answer
    x = 37,581.39

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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.