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Finding the Fourth Proportional to 119,809.20, 179,713.80 and 36,703.20

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Solution

The fourth proportional to 119,809.20, 179,713.80 and 36,703.20 is: 55,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,809.20 : 179,713.80 = 36,703.20 : x
  2. Step 2: Convert to fraction form
    119,809.20/179,713.80 = 36,703.20/x
  3. Step 3: Cross multiply
    119,809.20x = 179,713.80 × 36,703.20
  4. Step 4: Simplify right side
    119,809.20x = 6,596,071,544.16
  5. Step 5: Solve for x
    x = 6,596,071,544.16/119,809.20
  6. Step 6: Final answer
    x = 55,054.80

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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.