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Finding the Fourth Proportional to 126,253.60, 174,229.80 and 69,664.96

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Solution

The fourth proportional to 126,253.60, 174,229.80 and 69,664.96 is: 96,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,253.60 : 174,229.80 = 69,664.96 : x
  2. Step 2: Convert to fraction form
    126,253.60/174,229.80 = 69,664.96/x
  3. Step 3: Cross multiply
    126,253.60x = 174,229.80 × 69,664.96
  4. Step 4: Simplify right side
    126,253.60x = 12,137,712,047.81
  5. Step 5: Solve for x
    x = 12,137,712,047.81/126,253.60
  6. Step 6: Final answer
    x = 96,137.55

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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.