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Finding the Fourth Proportional to 112,119, 154,725.43 and 61,131.32

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Solution

The fourth proportional to 112,119, 154,725.43 and 61,131.32 is: 84,361.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,119 : 154,725.43 = 61,131.32 : x
  2. Step 2: Convert to fraction form
    112,119/154,725.43 = 61,131.32/x
  3. Step 3: Cross multiply
    112,119x = 154,725.43 × 61,131.32
  4. Step 4: Simplify right side
    112,119x = 9,458,569,773.47
  5. Step 5: Solve for x
    x = 9,458,569,773.47/112,119
  6. Step 6: Final answer
    x = 84,361.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.