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Finding the Fourth Proportional to 126,354.80, 174,365.06 and 69,764.96

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Solution

The fourth proportional to 126,354.80, 174,365.06 and 69,764.96 is: 96,273.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,354.80 : 174,365.06 = 69,764.96 : x
  2. Step 2: Convert to fraction form
    126,354.80/174,365.06 = 69,764.96/x
  3. Step 3: Cross multiply
    126,354.80x = 174,365.06 × 69,764.96
  4. Step 4: Simplify right side
    126,354.80x = 12,164,571,436.30
  5. Step 5: Solve for x
    x = 12,164,571,436.30/126,354.80
  6. Step 6: Final answer
    x = 96,273.12

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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.