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Finding the Fourth Proportional to 124,609.87, 186,917.45 and 44,653.05

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Solution

The fourth proportional to 124,609.87, 186,917.45 and 44,653.05 is: 66,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,609.87 : 186,917.45 = 44,653.05 : x
  2. Step 2: Convert to fraction form
    124,609.87/186,917.45 = 44,653.05/x
  3. Step 3: Cross multiply
    124,609.87x = 186,917.45 × 44,653.05
  4. Step 4: Simplify right side
    124,609.87x = 8,346,434,240.72
  5. Step 5: Solve for x
    x = 8,346,434,240.72/124,609.87
  6. Step 6: Final answer
    x = 66,980.52

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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.