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Finding the Fourth Proportional to 133,793.08, 184,731.32 and 86,129.46

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Solution

The fourth proportional to 133,793.08, 184,731.32 and 86,129.46 is: 118,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,793.08 : 184,731.32 = 86,129.46 : x
  2. Step 2: Convert to fraction form
    133,793.08/184,731.32 = 86,129.46/x
  3. Step 3: Cross multiply
    133,793.08x = 184,731.32 × 86,129.46
  4. Step 4: Simplify right side
    133,793.08x = 15,910,808,567.53
  5. Step 5: Solve for x
    x = 15,910,808,567.53/133,793.08
  6. Step 6: Final answer
    x = 118,921.01

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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.