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Finding the Fourth Proportional to 186,108.70, 279,057.30 and 127,015.96

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Solution

The fourth proportional to 186,108.70, 279,057.30 and 127,015.96 is: 190,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,108.70 : 279,057.30 = 127,015.96 : x
  2. Step 2: Convert to fraction form
    186,108.70/279,057.30 = 127,015.96/x
  3. Step 3: Cross multiply
    186,108.70x = 279,057.30 × 127,015.96
  4. Step 4: Simplify right side
    186,108.70x = 35,444,730,854.51
  5. Step 5: Solve for x
    x = 35,444,730,854.51/186,108.70
  6. Step 6: Final answer
    x = 190,451.77

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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.