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Finding the Fourth Proportional to 126,467.68, 174,524.16 and 69,877.84

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Solution

The fourth proportional to 126,467.68, 174,524.16 and 69,877.84 is: 96,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,467.68 : 174,524.16 = 69,877.84 : x
  2. Step 2: Convert to fraction form
    126,467.68/174,524.16 = 69,877.84/x
  3. Step 3: Cross multiply
    126,467.68x = 174,524.16 × 69,877.84
  4. Step 4: Simplify right side
    126,467.68x = 12,195,371,328.61
  5. Step 5: Solve for x
    x = 12,195,371,328.61/126,467.68
  6. Step 6: Final answer
    x = 96,430.73

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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.