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Finding the Fourth Proportional to 119,806.80, 179,710.20 and 36,700.80

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Solution

The fourth proportional to 119,806.80, 179,710.20 and 36,700.80 is: 55,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,806.80 : 179,710.20 = 36,700.80 : x
  2. Step 2: Convert to fraction form
    119,806.80/179,710.20 = 36,700.80/x
  3. Step 3: Cross multiply
    119,806.80x = 179,710.20 × 36,700.80
  4. Step 4: Simplify right side
    119,806.80x = 6,595,508,108.16
  5. Step 5: Solve for x
    x = 6,595,508,108.16/119,806.80
  6. Step 6: Final answer
    x = 55,051.20

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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.