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Finding the Fourth Proportional to 125,365.74, 188,049.06 and 31,871.49

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Solution

The fourth proportional to 125,365.74, 188,049.06 and 31,871.49 is: 47,807.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,365.74 : 188,049.06 = 31,871.49 : x
  2. Step 2: Convert to fraction form
    125,365.74/188,049.06 = 31,871.49/x
  3. Step 3: Cross multiply
    125,365.74x = 188,049.06 × 31,871.49
  4. Step 4: Simplify right side
    125,365.74x = 5,993,403,735.30
  5. Step 5: Solve for x
    x = 5,993,403,735.30/125,365.74
  6. Step 6: Final answer
    x = 47,807.35

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1.5x scale

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.