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Finding the Fourth Proportional to 186,040.60, 279,147.30 and 97,394.20

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Solution

The fourth proportional to 186,040.60, 279,147.30 and 97,394.20 is: 146,136.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,040.60 : 279,147.30 = 97,394.20 : x
  2. Step 2: Convert to fraction form
    186,040.60/279,147.30 = 97,394.20/x
  3. Step 3: Cross multiply
    186,040.60x = 279,147.30 × 97,394.20
  4. Step 4: Simplify right side
    186,040.60x = 27,187,327,965.66
  5. Step 5: Solve for x
    x = 27,187,327,965.66/186,040.60
  6. Step 6: Final answer
    x = 146,136.53

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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.