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Finding the Fourth Proportional to 126,507.88, 189,755.34 and 37,762.12

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Solution

The fourth proportional to 126,507.88, 189,755.34 and 37,762.12 is: 56,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,507.88 : 189,755.34 = 37,762.12 : x
  2. Step 2: Convert to fraction form
    126,507.88/189,755.34 = 37,762.12/x
  3. Step 3: Cross multiply
    126,507.88x = 189,755.34 × 37,762.12
  4. Step 4: Simplify right side
    126,507.88x = 7,165,563,919.72
  5. Step 5: Solve for x
    x = 7,165,563,919.72/126,507.88
  6. Step 6: Final answer
    x = 56,641.25

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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.