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Finding the Fourth Proportional to 127,076.92, 175,361.68 and 70,493.56

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Solution

The fourth proportional to 127,076.92, 175,361.68 and 70,493.56 is: 97,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,076.92 : 175,361.68 = 70,493.56 : x
  2. Step 2: Convert to fraction form
    127,076.92/175,361.68 = 70,493.56/x
  3. Step 3: Cross multiply
    127,076.92x = 175,361.68 × 70,493.56
  4. Step 4: Simplify right side
    127,076.92x = 12,361,869,110.78
  5. Step 5: Solve for x
    x = 12,361,869,110.78/127,076.92
  6. Step 6: Final answer
    x = 97,278.63

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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.