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Finding the Fourth Proportional to 131,427.60, 184,465.20 and 131,427.60

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Solution

The fourth proportional to 131,427.60, 184,465.20 and 131,427.60 is: 184,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,427.60 : 184,465.20 = 131,427.60 : x
  2. Step 2: Convert to fraction form
    131,427.60/184,465.20 = 131,427.60/x
  3. Step 3: Cross multiply
    131,427.60x = 184,465.20 × 131,427.60
  4. Step 4: Simplify right side
    131,427.60x = 24,243,818,519.52
  5. Step 5: Solve for x
    x = 24,243,818,519.52/131,427.60
  6. Step 6: Final answer
    x = 184,465.20

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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.