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Finding the Fourth Proportional to 252,897.53, 379,559.12 and 126,499.86

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Solution

The fourth proportional to 252,897.53, 379,559.12 and 126,499.86 is: 189,856.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,897.53 : 379,559.12 = 126,499.86 : x
  2. Step 2: Convert to fraction form
    252,897.53/379,559.12 = 126,499.86/x
  3. Step 3: Cross multiply
    252,897.53x = 379,559.12 × 126,499.86
  4. Step 4: Simplify right side
    252,897.53x = 48,014,174,909.22
  5. Step 5: Solve for x
    x = 48,014,174,909.22/252,897.53
  6. Step 6: Final answer
    x = 189,856.25

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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.