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Finding the Fourth Proportional to 104,902.84, 144,764.08 and 57,156.53

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Solution

The fourth proportional to 104,902.84, 144,764.08 and 57,156.53 is: 78,875.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,902.84 : 144,764.08 = 57,156.53 : x
  2. Step 2: Convert to fraction form
    104,902.84/144,764.08 = 57,156.53/x
  3. Step 3: Cross multiply
    104,902.84x = 144,764.08 × 57,156.53
  4. Step 4: Simplify right side
    104,902.84x = 8,274,212,481.44
  5. Step 5: Solve for x
    x = 8,274,212,481.44/104,902.84
  6. Step 6: Final answer
    x = 78,875.01

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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.