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Finding the Fourth Proportional to 132,059.80, 197,715.30 and 102,530.20

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Solution

The fourth proportional to 132,059.80, 197,715.30 and 102,530.20 is: 153,504.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,059.80 : 197,715.30 = 102,530.20 : x
  2. Step 2: Convert to fraction form
    132,059.80/197,715.30 = 102,530.20/x
  3. Step 3: Cross multiply
    132,059.80x = 197,715.30 × 102,530.20
  4. Step 4: Simplify right side
    132,059.80x = 20,271,789,252.06
  5. Step 5: Solve for x
    x = 20,271,789,252.06/132,059.80
  6. Step 6: Final answer
    x = 153,504.62

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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.