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Finding the Fourth Proportional to 186,498.85, 279,776.06 and 66,546.45

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Solution

The fourth proportional to 186,498.85, 279,776.06 and 66,546.45 is: 99,829.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,498.85 : 279,776.06 = 66,546.45 : x
  2. Step 2: Convert to fraction form
    186,498.85/279,776.06 = 66,546.45/x
  3. Step 3: Cross multiply
    186,498.85x = 279,776.06 × 66,546.45
  4. Step 4: Simplify right side
    186,498.85x = 18,618,103,754.35
  5. Step 5: Solve for x
    x = 18,618,103,754.35/186,498.85
  6. Step 6: Final answer
    x = 99,829.59

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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.