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Finding the Fourth Proportional to 125,752.56, 173,539.70 and 68,392.43

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Solution

The fourth proportional to 125,752.56, 173,539.70 and 68,392.43 is: 94,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,752.56 : 173,539.70 = 68,392.43 : x
  2. Step 2: Convert to fraction form
    125,752.56/173,539.70 = 68,392.43/x
  3. Step 3: Cross multiply
    125,752.56x = 173,539.70 × 68,392.43
  4. Step 4: Simplify right side
    125,752.56x = 11,868,800,574.81
  5. Step 5: Solve for x
    x = 11,868,800,574.81/125,752.56
  6. Step 6: Final answer
    x = 94,382.18

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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.