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Finding the Fourth Proportional to 125,943.30, 188,850.15 and 47,016.90

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Solution

The fourth proportional to 125,943.30, 188,850.15 and 47,016.90 is: 70,501.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,943.30 : 188,850.15 = 47,016.90 : x
  2. Step 2: Convert to fraction form
    125,943.30/188,850.15 = 47,016.90/x
  3. Step 3: Cross multiply
    125,943.30x = 188,850.15 × 47,016.90
  4. Step 4: Simplify right side
    125,943.30x = 8,879,148,617.54
  5. Step 5: Solve for x
    x = 8,879,148,617.54/125,943.30
  6. Step 6: Final answer
    x = 70,501.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.