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Finding the Fourth Proportional to 91,876.30, 137,787.06 and 35,725.12

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Solution

The fourth proportional to 91,876.30, 137,787.06 and 35,725.12 is: 53,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,876.30 : 137,787.06 = 35,725.12 : x
  2. Step 2: Convert to fraction form
    91,876.30/137,787.06 = 35,725.12/x
  3. Step 3: Cross multiply
    91,876.30x = 137,787.06 × 35,725.12
  4. Step 4: Simplify right side
    91,876.30x = 4,922,459,252.95
  5. Step 5: Solve for x
    x = 4,922,459,252.95/91,876.30
  6. Step 6: Final answer
    x = 53,577.03

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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.