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Finding the Fourth Proportional to 168,699.67, 253,054.05 and 73,881.07

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Solution

The fourth proportional to 168,699.67, 253,054.05 and 73,881.07 is: 110,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,699.67 : 253,054.05 = 73,881.07 : x
  2. Step 2: Convert to fraction form
    168,699.67/253,054.05 = 73,881.07/x
  3. Step 3: Cross multiply
    168,699.67x = 253,054.05 × 73,881.07
  4. Step 4: Simplify right side
    168,699.67x = 18,695,903,981.83
  5. Step 5: Solve for x
    x = 18,695,903,981.83/168,699.67
  6. Step 6: Final answer
    x = 110,823.60

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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.