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Finding the Fourth Proportional to 125,572.20, 188,795.70 and 106,326.60

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Solution

The fourth proportional to 125,572.20, 188,795.70 and 106,326.60 is: 159,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,572.20 : 188,795.70 = 106,326.60 : x
  2. Step 2: Convert to fraction form
    125,572.20/188,795.70 = 106,326.60/x
  3. Step 3: Cross multiply
    125,572.20x = 188,795.70 × 106,326.60
  4. Step 4: Simplify right side
    125,572.20x = 20,074,004,875.62
  5. Step 5: Solve for x
    x = 20,074,004,875.62/125,572.20
  6. Step 6: Final answer
    x = 159,860.26

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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.