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Finding the Fourth Proportional to 133,387.42, 184,079.01 and 72,958.06

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Solution

The fourth proportional to 133,387.42, 184,079.01 and 72,958.06 is: 100,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,387.42 : 184,079.01 = 72,958.06 : x
  2. Step 2: Convert to fraction form
    133,387.42/184,079.01 = 72,958.06/x
  3. Step 3: Cross multiply
    133,387.42x = 184,079.01 × 72,958.06
  4. Step 4: Simplify right side
    133,387.42x = 13,430,047,456.32
  5. Step 5: Solve for x
    x = 13,430,047,456.32/133,387.42
  6. Step 6: Final answer
    x = 100,684.51

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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.