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Finding the Fourth Proportional to 119,776.40, 179,639.40 and 60,556.40

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Solution

The fourth proportional to 119,776.40, 179,639.40 and 60,556.40 is: 90,821.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,776.40 : 179,639.40 = 60,556.40 : x
  2. Step 2: Convert to fraction form
    119,776.40/179,639.40 = 60,556.40/x
  3. Step 3: Cross multiply
    119,776.40x = 179,639.40 × 60,556.40
  4. Step 4: Simplify right side
    119,776.40x = 10,878,315,362.16
  5. Step 5: Solve for x
    x = 10,878,315,362.16/119,776.40
  6. Step 6: Final answer
    x = 90,821.86

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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.