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Finding the Fourth Proportional to 124,600.30, 186,943.65 and 54,529.90

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Solution

The fourth proportional to 124,600.30, 186,943.65 and 54,529.90 is: 81,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,600.30 : 186,943.65 = 54,529.90 : x
  2. Step 2: Convert to fraction form
    124,600.30/186,943.65 = 54,529.90/x
  3. Step 3: Cross multiply
    124,600.30x = 186,943.65 × 54,529.90
  4. Step 4: Simplify right side
    124,600.30x = 10,194,018,540.14
  5. Step 5: Solve for x
    x = 10,194,018,540.14/124,600.30
  6. Step 6: Final answer
    x = 81,813.76

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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.