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Finding the Fourth Proportional to 186,399.83, 279,472.17 and 130,270.48

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Solution

The fourth proportional to 186,399.83, 279,472.17 and 130,270.48 is: 195,316.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,399.83 : 279,472.17 = 130,270.48 : x
  2. Step 2: Convert to fraction form
    186,399.83/279,472.17 = 130,270.48/x
  3. Step 3: Cross multiply
    186,399.83x = 279,472.17 × 130,270.48
  4. Step 4: Simplify right side
    186,399.83x = 36,406,973,522.38
  5. Step 5: Solve for x
    x = 36,406,973,522.38/186,399.83
  6. Step 6: Final answer
    x = 195,316.56

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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.