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Finding the Fourth Proportional to 274,361.18, 378,596.85 and 153,492.98

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Solution

The fourth proportional to 274,361.18, 378,596.85 and 153,492.98 is: 211,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,361.18 : 378,596.85 = 153,492.98 : x
  2. Step 2: Convert to fraction form
    274,361.18/378,596.85 = 153,492.98/x
  3. Step 3: Cross multiply
    274,361.18x = 378,596.85 × 153,492.98
  4. Step 4: Simplify right side
    274,361.18x = 58,111,958,725.11
  5. Step 5: Solve for x
    x = 58,111,958,725.11/274,361.18
  6. Step 6: Final answer
    x = 211,808.24

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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.