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Finding the Fourth Proportional to 135,612.80, 203,419.20 and 93,622.40

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Solution

The fourth proportional to 135,612.80, 203,419.20 and 93,622.40 is: 140,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,612.80 : 203,419.20 = 93,622.40 : x
  2. Step 2: Convert to fraction form
    135,612.80/203,419.20 = 93,622.40/x
  3. Step 3: Cross multiply
    135,612.80x = 203,419.20 × 93,622.40
  4. Step 4: Simplify right side
    135,612.80x = 19,044,593,710.08
  5. Step 5: Solve for x
    x = 19,044,593,710.08/135,612.80
  6. Step 6: Final answer
    x = 140,433.60

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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.