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Finding the Fourth Proportional to 169,023.07, 253,166.11 and 84,636.06

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Solution

The fourth proportional to 169,023.07, 253,166.11 and 84,636.06 is: 126,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,023.07 : 253,166.11 = 84,636.06 : x
  2. Step 2: Convert to fraction form
    169,023.07/253,166.11 = 84,636.06/x
  3. Step 3: Cross multiply
    169,023.07x = 253,166.11 × 84,636.06
  4. Step 4: Simplify right side
    169,023.07x = 21,426,980,914.96
  5. Step 5: Solve for x
    x = 21,426,980,914.96/169,023.07
  6. Step 6: Final answer
    x = 126,769.56

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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.