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Finding the Fourth Proportional to 126,447.84, 174,501.56 and 69,862.88

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Solution

The fourth proportional to 126,447.84, 174,501.56 and 69,862.88 is: 96,412.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,447.84 : 174,501.56 = 69,862.88 : x
  2. Step 2: Convert to fraction form
    126,447.84/174,501.56 = 69,862.88/x
  3. Step 3: Cross multiply
    126,447.84x = 174,501.56 × 69,862.88
  4. Step 4: Simplify right side
    126,447.84x = 12,191,181,546.09
  5. Step 5: Solve for x
    x = 12,191,181,546.09/126,447.84
  6. Step 6: Final answer
    x = 96,412.73

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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.