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Finding the Fourth Proportional to 132,693.94, 199,074.62 and 39,199.69

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Solution

The fourth proportional to 132,693.94, 199,074.62 and 39,199.69 is: 58,809.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,693.94 : 199,074.62 = 39,199.69 : x
  2. Step 2: Convert to fraction form
    132,693.94/199,074.62 = 39,199.69/x
  3. Step 3: Cross multiply
    132,693.94x = 199,074.62 × 39,199.69
  4. Step 4: Simplify right side
    132,693.94x = 7,803,662,991.18
  5. Step 5: Solve for x
    x = 7,803,662,991.18/132,693.94
  6. Step 6: Final answer
    x = 58,809.49

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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.