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Finding the Fourth Proportional to 226,005.80, 338,619.90 and 147,079.40

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Solution

The fourth proportional to 226,005.80, 338,619.90 and 147,079.40 is: 220,366.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,005.80 : 338,619.90 = 147,079.40 : x
  2. Step 2: Convert to fraction form
    226,005.80/338,619.90 = 147,079.40/x
  3. Step 3: Cross multiply
    226,005.80x = 338,619.90 × 147,079.40
  4. Step 4: Simplify right side
    226,005.80x = 49,804,011,720.06
  5. Step 5: Solve for x
    x = 49,804,011,720.06/226,005.80
  6. Step 6: Final answer
    x = 220,366.08

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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.