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Finding the Fourth Proportional to 394,994.17, 592,580.18 and 125,138.58

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Solution

The fourth proportional to 394,994.17, 592,580.18 and 125,138.58 is: 187,736.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,994.17 : 592,580.18 = 125,138.58 : x
  2. Step 2: Convert to fraction form
    394,994.17/592,580.18 = 125,138.58/x
  3. Step 3: Cross multiply
    394,994.17x = 592,580.18 × 125,138.58
  4. Step 4: Simplify right side
    394,994.17x = 74,154,642,261.34
  5. Step 5: Solve for x
    x = 74,154,642,261.34/394,994.17
  6. Step 6: Final answer
    x = 187,736.04

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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.