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Finding the Fourth Proportional to 127,783.89, 191,713.41 and 37,828.89

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Solution

The fourth proportional to 127,783.89, 191,713.41 and 37,828.89 is: 56,754.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,783.89 : 191,713.41 = 37,828.89 : x
  2. Step 2: Convert to fraction form
    127,783.89/191,713.41 = 37,828.89/x
  3. Step 3: Cross multiply
    127,783.89x = 191,713.41 × 37,828.89
  4. Step 4: Simplify right side
    127,783.89x = 7,252,305,498.41
  5. Step 5: Solve for x
    x = 7,252,305,498.41/127,783.89
  6. Step 6: Final answer
    x = 56,754.46

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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.