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Finding the Fourth Proportional to 131,421.60, 184,456.80 and 131,421.60

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Solution

The fourth proportional to 131,421.60, 184,456.80 and 131,421.60 is: 184,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,421.60 : 184,456.80 = 131,421.60 : x
  2. Step 2: Convert to fraction form
    131,421.60/184,456.80 = 131,421.60/x
  3. Step 3: Cross multiply
    131,421.60x = 184,456.80 × 131,421.60
  4. Step 4: Simplify right side
    131,421.60x = 24,241,607,786.88
  5. Step 5: Solve for x
    x = 24,241,607,786.88/131,421.60
  6. Step 6: Final answer
    x = 184,456.80

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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.