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Finding the Fourth Proportional to 127,397.40, 191,100.48 and 57,276.96

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Solution

The fourth proportional to 127,397.40, 191,100.48 and 57,276.96 is: 85,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,397.40 : 191,100.48 = 57,276.96 : x
  2. Step 2: Convert to fraction form
    127,397.40/191,100.48 = 57,276.96/x
  3. Step 3: Cross multiply
    127,397.40x = 191,100.48 × 57,276.96
  4. Step 4: Simplify right side
    127,397.40x = 10,945,654,548.94
  5. Step 5: Solve for x
    x = 10,945,654,548.94/127,397.40
  6. Step 6: Final answer
    x = 85,917.41

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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.