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Finding the Fourth Proportional to 186,254.40, 279,279.54 and 73,820.73

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Solution

The fourth proportional to 186,254.40, 279,279.54 and 73,820.73 is: 110,690.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,254.40 : 279,279.54 = 73,820.73 : x
  2. Step 2: Convert to fraction form
    186,254.40/279,279.54 = 73,820.73/x
  3. Step 3: Cross multiply
    186,254.40x = 279,279.54 × 73,820.73
  4. Step 4: Simplify right side
    186,254.40x = 20,616,619,516.86
  5. Step 5: Solve for x
    x = 20,616,619,516.86/186,254.40
  6. Step 6: Final answer
    x = 110,690.64

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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.