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Finding the Fourth Proportional to 133,776.64, 184,611.20 and 74,160.64

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Solution

The fourth proportional to 133,776.64, 184,611.20 and 74,160.64 is: 102,341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,776.64 : 184,611.20 = 74,160.64 : x
  2. Step 2: Convert to fraction form
    133,776.64/184,611.20 = 74,160.64/x
  3. Step 3: Cross multiply
    133,776.64x = 184,611.20 × 74,160.64
  4. Step 4: Simplify right side
    133,776.64x = 13,690,884,743.17
  5. Step 5: Solve for x
    x = 13,690,884,743.17/133,776.64
  6. Step 6: Final answer
    x = 102,341.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.