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Finding the Fourth Proportional to 119,812.80, 179,719.20 and 36,706.80

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Solution

The fourth proportional to 119,812.80, 179,719.20 and 36,706.80 is: 55,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,812.80 : 179,719.20 = 36,706.80 : x
  2. Step 2: Convert to fraction form
    119,812.80/179,719.20 = 36,706.80/x
  3. Step 3: Cross multiply
    119,812.80x = 179,719.20 × 36,706.80
  4. Step 4: Simplify right side
    119,812.80x = 6,596,916,730.56
  5. Step 5: Solve for x
    x = 6,596,916,730.56/119,812.80
  6. Step 6: Final answer
    x = 55,060.20

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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.