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Finding the Fourth Proportional to 173,381.81, 260,147.84 and 61,142.22

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Solution

The fourth proportional to 173,381.81, 260,147.84 and 61,142.22 is: 91,739.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,381.81 : 260,147.84 = 61,142.22 : x
  2. Step 2: Convert to fraction form
    173,381.81/260,147.84 = 61,142.22/x
  3. Step 3: Cross multiply
    173,381.81x = 260,147.84 × 61,142.22
  4. Step 4: Simplify right side
    173,381.81x = 15,906,016,160.09
  5. Step 5: Solve for x
    x = 15,906,016,160.09/173,381.81
  6. Step 6: Final answer
    x = 91,739.82

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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.