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Finding the Fourth Proportional to 125,662.32, 173,412.60 and 68,300.40

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Solution

The fourth proportional to 125,662.32, 173,412.60 and 68,300.40 is: 94,253.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,662.32 : 173,412.60 = 68,300.40 : x
  2. Step 2: Convert to fraction form
    125,662.32/173,412.60 = 68,300.40/x
  3. Step 3: Cross multiply
    125,662.32x = 173,412.60 × 68,300.40
  4. Step 4: Simplify right side
    125,662.32x = 11,844,149,945.04
  5. Step 5: Solve for x
    x = 11,844,149,945.04/125,662.32
  6. Step 6: Final answer
    x = 94,253.79

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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.