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Finding the Fourth Proportional to 126,555.50, 174,650.24 and 69,970.52

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Solution

The fourth proportional to 126,555.50, 174,650.24 and 69,970.52 is: 96,561.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,555.50 : 174,650.24 = 69,970.52 : x
  2. Step 2: Convert to fraction form
    126,555.50/174,650.24 = 69,970.52/x
  3. Step 3: Cross multiply
    126,555.50x = 174,650.24 × 69,970.52
  4. Step 4: Simplify right side
    126,555.50x = 12,220,367,761.07
  5. Step 5: Solve for x
    x = 12,220,367,761.07/126,555.50
  6. Step 6: Final answer
    x = 96,561.33

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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.