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Finding the Fourth Proportional to 131,451.20, 184,381.60 and 131,451.20

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Solution

The fourth proportional to 131,451.20, 184,381.60 and 131,451.20 is: 184,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,451.20 : 184,381.60 = 131,451.20 : x
  2. Step 2: Convert to fraction form
    131,451.20/184,381.60 = 131,451.20/x
  3. Step 3: Cross multiply
    131,451.20x = 184,381.60 × 131,451.20
  4. Step 4: Simplify right side
    131,451.20x = 24,237,182,577.92
  5. Step 5: Solve for x
    x = 24,237,182,577.92/131,451.20
  6. Step 6: Final answer
    x = 184,381.60

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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.