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Finding the Fourth Proportional to 312,422.58, 468,536.99 and 112,717.01

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Solution

The fourth proportional to 312,422.58, 468,536.99 and 112,717.01 is: 169,040.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,422.58 : 468,536.99 = 112,717.01 : x
  2. Step 2: Convert to fraction form
    312,422.58/468,536.99 = 112,717.01/x
  3. Step 3: Cross multiply
    312,422.58x = 468,536.99 × 112,717.01
  4. Step 4: Simplify right side
    312,422.58x = 52,812,086,244.52
  5. Step 5: Solve for x
    x = 52,812,086,244.52/312,422.58
  6. Step 6: Final answer
    x = 169,040.56

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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.