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Finding the Fourth Proportional to 126,446.88, 189,703.92 and 37,700.64

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Solution

The fourth proportional to 126,446.88, 189,703.92 and 37,700.64 is: 56,560.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,446.88 : 189,703.92 = 37,700.64 : x
  2. Step 2: Convert to fraction form
    126,446.88/189,703.92 = 37,700.64/x
  3. Step 3: Cross multiply
    126,446.88x = 189,703.92 × 37,700.64
  4. Step 4: Simplify right side
    126,446.88x = 7,151,959,194.51
  5. Step 5: Solve for x
    x = 7,151,959,194.51/126,446.88
  6. Step 6: Final answer
    x = 56,560.98

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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.