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Finding the Fourth Proportional to 126,830.66, 175,026.22 and 70,241.98

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Solution

The fourth proportional to 126,830.66, 175,026.22 and 70,241.98 is: 96,933.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,830.66 : 175,026.22 = 70,241.98 : x
  2. Step 2: Convert to fraction form
    126,830.66/175,026.22 = 70,241.98/x
  3. Step 3: Cross multiply
    126,830.66x = 175,026.22 × 70,241.98
  4. Step 4: Simplify right side
    126,830.66x = 12,294,188,244.72
  5. Step 5: Solve for x
    x = 12,294,188,244.72/126,830.66
  6. Step 6: Final answer
    x = 96,933.88

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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.