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Finding the Fourth Proportional to 189,525.72, 261,523.08 and 113,049

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Solution

The fourth proportional to 189,525.72, 261,523.08 and 113,049 is: 155,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,525.72 : 261,523.08 = 113,049 : x
  2. Step 2: Convert to fraction form
    189,525.72/261,523.08 = 113,049/x
  3. Step 3: Cross multiply
    189,525.72x = 261,523.08 × 113,049
  4. Step 4: Simplify right side
    189,525.72x = 29,564,922,670.92
  5. Step 5: Solve for x
    x = 29,564,922,670.92/189,525.72
  6. Step 6: Final answer
    x = 155,994.25

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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.