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Finding the Fourth Proportional to 235,672.17, 353,563.62 and 77,900.61

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Solution

The fourth proportional to 235,672.17, 353,563.62 and 77,900.61 is: 116,869.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,672.17 : 353,563.62 = 77,900.61 : x
  2. Step 2: Convert to fraction form
    235,672.17/353,563.62 = 77,900.61/x
  3. Step 3: Cross multiply
    235,672.17x = 353,563.62 × 77,900.61
  4. Step 4: Simplify right side
    235,672.17x = 27,542,821,671.81
  5. Step 5: Solve for x
    x = 27,542,821,671.81/235,672.17
  6. Step 6: Final answer
    x = 116,869.22

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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.