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Finding the Fourth Proportional to 379,597.84, 569,203.32 and 126,787.44

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Solution

The fourth proportional to 379,597.84, 569,203.32 and 126,787.44 is: 190,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,597.84 : 569,203.32 = 126,787.44 : x
  2. Step 2: Convert to fraction form
    379,597.84/569,203.32 = 126,787.44/x
  3. Step 3: Cross multiply
    379,597.84x = 569,203.32 × 126,787.44
  4. Step 4: Simplify right side
    379,597.84x = 72,167,831,782.30
  5. Step 5: Solve for x
    x = 72,167,831,782.30/379,597.84
  6. Step 6: Final answer
    x = 190,116.55

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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.