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Finding the Fourth Proportional to 132,065.80, 197,724.30 and 102,536.20

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Solution

The fourth proportional to 132,065.80, 197,724.30 and 102,536.20 is: 153,513.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,065.80 : 197,724.30 = 102,536.20 : x
  2. Step 2: Convert to fraction form
    132,065.80/197,724.30 = 102,536.20/x
  3. Step 3: Cross multiply
    132,065.80x = 197,724.30 × 102,536.20
  4. Step 4: Simplify right side
    132,065.80x = 20,273,898,369.66
  5. Step 5: Solve for x
    x = 20,273,898,369.66/132,065.80
  6. Step 6: Final answer
    x = 153,513.61

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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.