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Finding the Fourth Proportional to 168,904.74, 253,357.12 and 137,276.62

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Solution

The fourth proportional to 168,904.74, 253,357.12 and 137,276.62 is: 205,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,904.74 : 253,357.12 = 137,276.62 : x
  2. Step 2: Convert to fraction form
    168,904.74/253,357.12 = 137,276.62/x
  3. Step 3: Cross multiply
    168,904.74x = 253,357.12 × 137,276.62
  4. Step 4: Simplify right side
    168,904.74x = 34,780,009,277.69
  5. Step 5: Solve for x
    x = 34,780,009,277.69/168,904.74
  6. Step 6: Final answer
    x = 205,914.93

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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.