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Finding the Fourth Proportional to 125,892, 173,730.96 and 69,303.12

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Solution

The fourth proportional to 125,892, 173,730.96 and 69,303.12 is: 95,638.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,892 : 173,730.96 = 69,303.12 : x
  2. Step 2: Convert to fraction form
    125,892/173,730.96 = 69,303.12/x
  3. Step 3: Cross multiply
    125,892x = 173,730.96 × 69,303.12
  4. Step 4: Simplify right side
    125,892x = 12,040,097,568.60
  5. Step 5: Solve for x
    x = 12,040,097,568.60/125,892
  6. Step 6: Final answer
    x = 95,638.31

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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.