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Finding the Fourth Proportional to 127,381.68, 175,789.44 and 70,791.84

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Solution

The fourth proportional to 127,381.68, 175,789.44 and 70,791.84 is: 97,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,381.68 : 175,789.44 = 70,791.84 : x
  2. Step 2: Convert to fraction form
    127,381.68/175,789.44 = 70,791.84/x
  3. Step 3: Cross multiply
    127,381.68x = 175,789.44 × 70,791.84
  4. Step 4: Simplify right side
    127,381.68x = 12,444,457,910.17
  5. Step 5: Solve for x
    x = 12,444,457,910.17/127,381.68
  6. Step 6: Final answer
    x = 97,694.25

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1.5x scale

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.