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Finding the Fourth Proportional to 262,108.56, 393,063.16 and 84,588.96

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Solution

The fourth proportional to 262,108.56, 393,063.16 and 84,588.96 is: 126,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,108.56 : 393,063.16 = 84,588.96 : x
  2. Step 2: Convert to fraction form
    262,108.56/393,063.16 = 84,588.96/x
  3. Step 3: Cross multiply
    262,108.56x = 393,063.16 × 84,588.96
  4. Step 4: Simplify right side
    262,108.56x = 33,248,803,918.71
  5. Step 5: Solve for x
    x = 33,248,803,918.71/262,108.56
  6. Step 6: Final answer
    x = 126,851.27

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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.