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Finding the Fourth Proportional to 186,201.06, 279,265.55 and 72,348.68

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Solution

The fourth proportional to 186,201.06, 279,265.55 and 72,348.68 is: 108,509.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,201.06 : 279,265.55 = 72,348.68 : x
  2. Step 2: Convert to fraction form
    186,201.06/279,265.55 = 72,348.68/x
  3. Step 3: Cross multiply
    186,201.06x = 279,265.55 × 72,348.68
  4. Step 4: Simplify right side
    186,201.06x = 20,204,492,153.90
  5. Step 5: Solve for x
    x = 20,204,492,153.90/186,201.06
  6. Step 6: Final answer
    x = 108,509.01

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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.