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Finding the Fourth Proportional to 127,344.50, 175,735.44 and 70,755.87

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Solution

The fourth proportional to 127,344.50, 175,735.44 and 70,755.87 is: 97,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,344.50 : 175,735.44 = 70,755.87 : x
  2. Step 2: Convert to fraction form
    127,344.50/175,735.44 = 70,755.87/x
  3. Step 3: Cross multiply
    127,344.50x = 175,735.44 × 70,755.87
  4. Step 4: Simplify right side
    127,344.50x = 12,434,313,947.03
  5. Step 5: Solve for x
    x = 12,434,313,947.03/127,344.50
  6. Step 6: Final answer
    x = 97,643.12

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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.