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Finding the Fourth Proportional to 125,673.40, 173,469.75 and 80,473.17

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Solution

The fourth proportional to 125,673.40, 173,469.75 and 80,473.17 is: 111,078.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,673.40 : 173,469.75 = 80,473.17 : x
  2. Step 2: Convert to fraction form
    125,673.40/173,469.75 = 80,473.17/x
  3. Step 3: Cross multiply
    125,673.40x = 173,469.75 × 80,473.17
  4. Step 4: Simplify right side
    125,673.40x = 13,959,660,681.61
  5. Step 5: Solve for x
    x = 13,959,660,681.61/125,673.40
  6. Step 6: Final answer
    x = 111,078.88

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1.5x scale

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.