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Finding the Fourth Proportional to 125,084.60, 172,616.46 and 68,495.48

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Solution

The fourth proportional to 125,084.60, 172,616.46 and 68,495.48 is: 94,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,084.60 : 172,616.46 = 68,495.48 : x
  2. Step 2: Convert to fraction form
    125,084.60/172,616.46 = 68,495.48/x
  3. Step 3: Cross multiply
    125,084.60x = 172,616.46 × 68,495.48
  4. Step 4: Simplify right side
    125,084.60x = 11,823,447,283.60
  5. Step 5: Solve for x
    x = 11,823,447,283.60/125,084.60
  6. Step 6: Final answer
    x = 94,523.60

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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.