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Finding the Fourth Proportional to 78,599.73, 108,482.57 and 44,611.40

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Solution

The fourth proportional to 78,599.73, 108,482.57 and 44,611.40 is: 61,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,599.73 : 108,482.57 = 44,611.40 : x
  2. Step 2: Convert to fraction form
    78,599.73/108,482.57 = 44,611.40/x
  3. Step 3: Cross multiply
    78,599.73x = 108,482.57 × 44,611.40
  4. Step 4: Simplify right side
    78,599.73x = 4,839,558,725.12
  5. Step 5: Solve for x
    x = 4,839,558,725.12/78,599.73
  6. Step 6: Final answer
    x = 61,572.21

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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.