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Finding the Fourth Proportional to 163,659.40, 245,489.10 and 132,555.40

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Solution

The fourth proportional to 163,659.40, 245,489.10 and 132,555.40 is: 198,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,659.40 : 245,489.10 = 132,555.40 : x
  2. Step 2: Convert to fraction form
    163,659.40/245,489.10 = 132,555.40/x
  3. Step 3: Cross multiply
    163,659.40x = 245,489.10 × 132,555.40
  4. Step 4: Simplify right side
    163,659.40x = 32,540,905,846.14
  5. Step 5: Solve for x
    x = 32,540,905,846.14/163,659.40
  6. Step 6: Final answer
    x = 198,833.10

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1.5x scale

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.