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Finding the Fourth Proportional to 125,745, 188,638.80 and 62,568.60

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Solution

The fourth proportional to 125,745, 188,638.80 and 62,568.60 is: 93,863.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,745 : 188,638.80 = 62,568.60 : x
  2. Step 2: Convert to fraction form
    125,745/188,638.80 = 62,568.60/x
  3. Step 3: Cross multiply
    125,745x = 188,638.80 × 62,568.60
  4. Step 4: Simplify right side
    125,745x = 11,802,865,621.68
  5. Step 5: Solve for x
    x = 11,802,865,621.68/125,745
  6. Step 6: Final answer
    x = 93,863.50

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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.