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Finding the Fourth Proportional to 125,379.33, 173,020.35 and 70,187.88

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Solution

The fourth proportional to 125,379.33, 173,020.35 and 70,187.88 is: 96,857.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,379.33 : 173,020.35 = 70,187.88 : x
  2. Step 2: Convert to fraction form
    125,379.33/173,020.35 = 70,187.88/x
  3. Step 3: Cross multiply
    125,379.33x = 173,020.35 × 70,187.88
  4. Step 4: Simplify right side
    125,379.33x = 12,143,931,563.36
  5. Step 5: Solve for x
    x = 12,143,931,563.36/125,379.33
  6. Step 6: Final answer
    x = 96,857.52

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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.