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Finding the Fourth Proportional to 370,433.86, 555,540.53 and 157,198.32

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Solution

The fourth proportional to 370,433.86, 555,540.53 and 157,198.32 is: 235,750.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,433.86 : 555,540.53 = 157,198.32 : x
  2. Step 2: Convert to fraction form
    370,433.86/555,540.53 = 157,198.32/x
  3. Step 3: Cross multiply
    370,433.86x = 555,540.53 × 157,198.32
  4. Step 4: Simplify right side
    370,433.86x = 87,330,037,221.92
  5. Step 5: Solve for x
    x = 87,330,037,221.92/370,433.86
  6. Step 6: Final answer
    x = 235,750.69

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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.