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Finding the Fourth Proportional to 161,141.56, 241,629.34 and 72,318.92

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Solution

The fourth proportional to 161,141.56, 241,629.34 and 72,318.92 is: 108,441.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,141.56 : 241,629.34 = 72,318.92 : x
  2. Step 2: Convert to fraction form
    161,141.56/241,629.34 = 72,318.92/x
  3. Step 3: Cross multiply
    161,141.56x = 241,629.34 × 72,318.92
  4. Step 4: Simplify right side
    161,141.56x = 17,474,372,909.11
  5. Step 5: Solve for x
    x = 17,474,372,909.11/161,141.56
  6. Step 6: Final answer
    x = 108,441.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.