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Finding the Fourth Proportional to 127,996.87, 191,998.07 and 39,248.41

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Solution

The fourth proportional to 127,996.87, 191,998.07 and 39,248.41 is: 58,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,996.87 : 191,998.07 = 39,248.41 : x
  2. Step 2: Convert to fraction form
    127,996.87/191,998.07 = 39,248.41/x
  3. Step 3: Cross multiply
    127,996.87x = 191,998.07 × 39,248.41
  4. Step 4: Simplify right side
    127,996.87x = 7,535,618,970.57
  5. Step 5: Solve for x
    x = 7,535,618,970.57/127,996.87
  6. Step 6: Final answer
    x = 58,873.46

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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.