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Finding the Fourth Proportional to 115,313.56, 172,977.62 and 48,744.92

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Solution

The fourth proportional to 115,313.56, 172,977.62 and 48,744.92 is: 73,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,313.56 : 172,977.62 = 48,744.92 : x
  2. Step 2: Convert to fraction form
    115,313.56/172,977.62 = 48,744.92/x
  3. Step 3: Cross multiply
    115,313.56x = 172,977.62 × 48,744.92
  4. Step 4: Simplify right side
    115,313.56x = 8,431,780,248.69
  5. Step 5: Solve for x
    x = 8,431,780,248.69/115,313.56
  6. Step 6: Final answer
    x = 73,120.46

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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.