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Finding the Fourth Proportional to 245,650.86, 367,885.80 and 140,149.98

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Solution

The fourth proportional to 245,650.86, 367,885.80 and 140,149.98 is: 209,888.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,650.86 : 367,885.80 = 140,149.98 : x
  2. Step 2: Convert to fraction form
    245,650.86/367,885.80 = 140,149.98/x
  3. Step 3: Cross multiply
    245,650.86x = 367,885.80 × 140,149.98
  4. Step 4: Simplify right side
    245,650.86x = 51,559,187,512.28
  5. Step 5: Solve for x
    x = 51,559,187,512.28/245,650.86
  6. Step 6: Final answer
    x = 209,888.08

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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.