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Finding the Fourth Proportional to 94,780.92, 130,797.72 and 51,761

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Solution

The fourth proportional to 94,780.92, 130,797.72 and 51,761 is: 71,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,780.92 : 130,797.72 = 51,761 : x
  2. Step 2: Convert to fraction form
    94,780.92/130,797.72 = 51,761/x
  3. Step 3: Cross multiply
    94,780.92x = 130,797.72 × 51,761
  4. Step 4: Simplify right side
    94,780.92x = 6,770,220,784.92
  5. Step 5: Solve for x
    x = 6,770,220,784.92/94,780.92
  6. Step 6: Final answer
    x = 71,430.21

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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.