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Finding the Fourth Proportional to 186,090.45, 279,130.47 and 59,729.70

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Solution

The fourth proportional to 186,090.45, 279,130.47 and 59,729.70 is: 89,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,090.45 : 279,130.47 = 59,729.70 : x
  2. Step 2: Convert to fraction form
    186,090.45/279,130.47 = 59,729.70/x
  3. Step 3: Cross multiply
    186,090.45x = 279,130.47 × 59,729.70
  4. Step 4: Simplify right side
    186,090.45x = 16,672,379,233.96
  5. Step 5: Solve for x
    x = 16,672,379,233.96/186,090.45
  6. Step 6: Final answer
    x = 89,592.88

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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.