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Finding the Fourth Proportional to 108,532.80, 162,799.20 and 64,209.60

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Solution

The fourth proportional to 108,532.80, 162,799.20 and 64,209.60 is: 96,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,532.80 : 162,799.20 = 64,209.60 : x
  2. Step 2: Convert to fraction form
    108,532.80/162,799.20 = 64,209.60/x
  3. Step 3: Cross multiply
    108,532.80x = 162,799.20 × 64,209.60
  4. Step 4: Simplify right side
    108,532.80x = 10,453,271,512.32
  5. Step 5: Solve for x
    x = 10,453,271,512.32/108,532.80
  6. Step 6: Final answer
    x = 96,314.40

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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.