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Finding the Fourth Proportional to 131,720.40, 184,777.20 and 131,720.40

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Solution

The fourth proportional to 131,720.40, 184,777.20 and 131,720.40 is: 184,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,720.40 : 184,777.20 = 131,720.40 : x
  2. Step 2: Convert to fraction form
    131,720.40/184,777.20 = 131,720.40/x
  3. Step 3: Cross multiply
    131,720.40x = 184,777.20 × 131,720.40
  4. Step 4: Simplify right side
    131,720.40x = 24,338,926,694.88
  5. Step 5: Solve for x
    x = 24,338,926,694.88/131,720.40
  6. Step 6: Final answer
    x = 184,777.20

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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.