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Finding the Fourth Proportional to 131,968.80, 185,281.20 and 131,968.80

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Solution

The fourth proportional to 131,968.80, 185,281.20 and 131,968.80 is: 185,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,968.80 : 185,281.20 = 131,968.80 : x
  2. Step 2: Convert to fraction form
    131,968.80/185,281.20 = 131,968.80/x
  3. Step 3: Cross multiply
    131,968.80x = 185,281.20 × 131,968.80
  4. Step 4: Simplify right side
    131,968.80x = 24,451,337,626.56
  5. Step 5: Solve for x
    x = 24,451,337,626.56/131,968.80
  6. Step 6: Final answer
    x = 185,281.20

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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.