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Finding the Fourth Proportional to 354,113.55, 488,676.72 and 192,968.55

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Solution

The fourth proportional to 354,113.55, 488,676.72 and 192,968.55 is: 266,296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,113.55 : 488,676.72 = 192,968.55 : x
  2. Step 2: Convert to fraction form
    354,113.55/488,676.72 = 192,968.55/x
  3. Step 3: Cross multiply
    354,113.55x = 488,676.72 × 192,968.55
  4. Step 4: Simplify right side
    354,113.55x = 94,299,238,077.16
  5. Step 5: Solve for x
    x = 94,299,238,077.16/354,113.55
  6. Step 6: Final answer
    x = 266,296.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.