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Finding the Fourth Proportional to 132,057.80, 197,712.30 and 102,528.20

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Solution

The fourth proportional to 132,057.80, 197,712.30 and 102,528.20 is: 153,501.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,057.80 : 197,712.30 = 102,528.20 : x
  2. Step 2: Convert to fraction form
    132,057.80/197,712.30 = 102,528.20/x
  3. Step 3: Cross multiply
    132,057.80x = 197,712.30 × 102,528.20
  4. Step 4: Simplify right side
    132,057.80x = 20,271,086,236.86
  5. Step 5: Solve for x
    x = 20,271,086,236.86/132,057.80
  6. Step 6: Final answer
    x = 153,501.62

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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.