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Finding the Fourth Proportional to 96,390.80, 135,223.60 and 96,390.80

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Solution

The fourth proportional to 96,390.80, 135,223.60 and 96,390.80 is: 135,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,390.80 : 135,223.60 = 96,390.80 : x
  2. Step 2: Convert to fraction form
    96,390.80/135,223.60 = 96,390.80/x
  3. Step 3: Cross multiply
    96,390.80x = 135,223.60 × 96,390.80
  4. Step 4: Simplify right side
    96,390.80x = 13,034,310,982.88
  5. Step 5: Solve for x
    x = 13,034,310,982.88/96,390.80
  6. Step 6: Final answer
    x = 135,223.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.