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Finding the Fourth Proportional to 125,574.88, 173,293.40 and 68,989.90

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Solution

The fourth proportional to 125,574.88, 173,293.40 and 68,989.90 is: 95,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,574.88 : 173,293.40 = 68,989.90 : x
  2. Step 2: Convert to fraction form
    125,574.88/173,293.40 = 68,989.90/x
  3. Step 3: Cross multiply
    125,574.88x = 173,293.40 × 68,989.90
  4. Step 4: Simplify right side
    125,574.88x = 11,955,494,336.66
  5. Step 5: Solve for x
    x = 11,955,494,336.66/125,574.88
  6. Step 6: Final answer
    x = 95,206.10

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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.