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Finding the Fourth Proportional to 126,394.64, 174,425.16 and 69,806.48

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Solution

The fourth proportional to 126,394.64, 174,425.16 and 69,806.48 is: 96,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,394.64 : 174,425.16 = 69,806.48 : x
  2. Step 2: Convert to fraction form
    126,394.64/174,425.16 = 69,806.48/x
  3. Step 3: Cross multiply
    126,394.64x = 174,425.16 × 69,806.48
  4. Step 4: Simplify right side
    126,394.64x = 12,176,006,443.04
  5. Step 5: Solve for x
    x = 12,176,006,443.04/126,394.64
  6. Step 6: Final answer
    x = 96,333.25

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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.