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Finding the Fourth Proportional to 186,456.66, 279,576.99 and 127,363.74

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Solution

The fourth proportional to 186,456.66, 279,576.99 and 127,363.74 is: 190,971.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,456.66 : 279,576.99 = 127,363.74 : x
  2. Step 2: Convert to fraction form
    186,456.66/279,576.99 = 127,363.74/x
  3. Step 3: Cross multiply
    186,456.66x = 279,576.99 × 127,363.74
  4. Step 4: Simplify right side
    186,456.66x = 35,607,971,064.34
  5. Step 5: Solve for x
    x = 35,607,971,064.34/186,456.66
  6. Step 6: Final answer
    x = 190,971.84

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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.