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Finding the Fourth Proportional to 146,530.40, 219,925.20 and 125,535.20

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Solution

The fourth proportional to 146,530.40, 219,925.20 and 125,535.20 is: 188,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,530.40 : 219,925.20 = 125,535.20 : x
  2. Step 2: Convert to fraction form
    146,530.40/219,925.20 = 125,535.20/x
  3. Step 3: Cross multiply
    146,530.40x = 219,925.20 × 125,535.20
  4. Step 4: Simplify right side
    146,530.40x = 27,608,353,967.04
  5. Step 5: Solve for x
    x = 27,608,353,967.04/146,530.40
  6. Step 6: Final answer
    x = 188,413.83

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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.