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Finding the Fourth Proportional to 147,698.88, 221,195.16 and 85,179.84

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Solution

The fourth proportional to 147,698.88, 221,195.16 and 85,179.84 is: 127,566.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,698.88 : 221,195.16 = 85,179.84 : x
  2. Step 2: Convert to fraction form
    147,698.88/221,195.16 = 85,179.84/x
  3. Step 3: Cross multiply
    147,698.88x = 221,195.16 × 85,179.84
  4. Step 4: Simplify right side
    147,698.88x = 18,841,368,337.57
  5. Step 5: Solve for x
    x = 18,841,368,337.57/147,698.88
  6. Step 6: Final answer
    x = 127,566.09

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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.