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Finding the Fourth Proportional to 124,609.42, 186,914.11 and 68,804.36

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Solution

The fourth proportional to 124,609.42, 186,914.11 and 68,804.36 is: 103,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,609.42 : 186,914.11 = 68,804.36 : x
  2. Step 2: Convert to fraction form
    124,609.42/186,914.11 = 68,804.36/x
  3. Step 3: Cross multiply
    124,609.42x = 186,914.11 × 68,804.36
  4. Step 4: Simplify right side
    124,609.42x = 12,860,505,713.52
  5. Step 5: Solve for x
    x = 12,860,505,713.52/124,609.42
  6. Step 6: Final answer
    x = 103,206.53

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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.