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Finding the Fourth Proportional to 125,252.16, 172,850.40 and 68,660.16

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Solution

The fourth proportional to 125,252.16, 172,850.40 and 68,660.16 is: 94,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,252.16 : 172,850.40 = 68,660.16 : x
  2. Step 2: Convert to fraction form
    125,252.16/172,850.40 = 68,660.16/x
  3. Step 3: Cross multiply
    125,252.16x = 172,850.40 × 68,660.16
  4. Step 4: Simplify right side
    125,252.16x = 11,867,936,120.06
  5. Step 5: Solve for x
    x = 11,867,936,120.06/125,252.16
  6. Step 6: Final answer
    x = 94,752.35

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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.