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Finding the Fourth Proportional to 126,469.52, 174,527.88 and 69,880.40

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Solution

The fourth proportional to 126,469.52, 174,527.88 and 69,880.40 is: 96,434.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,469.52 : 174,527.88 = 69,880.40 : x
  2. Step 2: Convert to fraction form
    126,469.52/174,527.88 = 69,880.40/x
  3. Step 3: Cross multiply
    126,469.52x = 174,527.88 × 69,880.40
  4. Step 4: Simplify right side
    126,469.52x = 12,196,078,065.55
  5. Step 5: Solve for x
    x = 12,196,078,065.55/126,469.52
  6. Step 6: Final answer
    x = 96,434.92

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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.