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Finding the Fourth Proportional to 312,255.72, 468,330.30 and 112,536.36

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Solution

The fourth proportional to 312,255.72, 468,330.30 and 112,536.36 is: 168,785.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,255.72 : 468,330.30 = 112,536.36 : x
  2. Step 2: Convert to fraction form
    312,255.72/468,330.30 = 112,536.36/x
  3. Step 3: Cross multiply
    312,255.72x = 468,330.30 × 112,536.36
  4. Step 4: Simplify right side
    312,255.72x = 52,704,187,239.71
  5. Step 5: Solve for x
    x = 52,704,187,239.71/312,255.72
  6. Step 6: Final answer
    x = 168,785.34

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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.