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Finding the Fourth Proportional to 255,659.22, 383,573.88 and 113,484.78

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Solution

The fourth proportional to 255,659.22, 383,573.88 and 113,484.78 is: 170,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,659.22 : 383,573.88 = 113,484.78 : x
  2. Step 2: Convert to fraction form
    255,659.22/383,573.88 = 113,484.78/x
  3. Step 3: Cross multiply
    255,659.22x = 383,573.88 × 113,484.78
  4. Step 4: Simplify right side
    255,659.22x = 43,529,797,385.55
  5. Step 5: Solve for x
    x = 43,529,797,385.55/255,659.22
  6. Step 6: Final answer
    x = 170,264.92

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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.