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Finding the Fourth Proportional to 125,466.48, 188,150.64 and 45,485.52

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Solution

The fourth proportional to 125,466.48, 188,150.64 and 45,485.52 is: 68,210.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,466.48 : 188,150.64 = 45,485.52 : x
  2. Step 2: Convert to fraction form
    125,466.48/188,150.64 = 45,485.52/x
  3. Step 3: Cross multiply
    125,466.48x = 188,150.64 × 45,485.52
  4. Step 4: Simplify right side
    125,466.48x = 8,558,129,698.73
  5. Step 5: Solve for x
    x = 8,558,129,698.73/125,466.48
  6. Step 6: Final answer
    x = 68,210.49

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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.