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Finding the Fourth Proportional to 163,635.40, 245,453.10 and 132,531.40

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Solution

The fourth proportional to 163,635.40, 245,453.10 and 132,531.40 is: 198,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,635.40 : 245,453.10 = 132,531.40 : x
  2. Step 2: Convert to fraction form
    163,635.40/245,453.10 = 132,531.40/x
  3. Step 3: Cross multiply
    163,635.40x = 245,453.10 × 132,531.40
  4. Step 4: Simplify right side
    163,635.40x = 32,530,242,977.34
  5. Step 5: Solve for x
    x = 32,530,242,977.34/163,635.40
  6. Step 6: Final answer
    x = 198,797.10

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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.