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Finding the Fourth Proportional to 394,893.42, 592,429.31 and 125,037.95

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Solution

The fourth proportional to 394,893.42, 592,429.31 and 125,037.95 is: 187,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,893.42 : 592,429.31 = 125,037.95 : x
  2. Step 2: Convert to fraction form
    394,893.42/592,429.31 = 125,037.95/x
  3. Step 3: Cross multiply
    394,893.42x = 592,429.31 × 125,037.95
  4. Step 4: Simplify right side
    394,893.42x = 74,076,144,336.05
  5. Step 5: Solve for x
    x = 74,076,144,336.05/394,893.42
  6. Step 6: Final answer
    x = 187,585.16

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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.