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Finding the Fourth Proportional to 107,438.59, 161,157.88 and 40,863.34

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Solution

The fourth proportional to 107,438.59, 161,157.88 and 40,863.34 is: 61,295.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,438.59 : 161,157.88 = 40,863.34 : x
  2. Step 2: Convert to fraction form
    107,438.59/161,157.88 = 40,863.34/x
  3. Step 3: Cross multiply
    107,438.59x = 161,157.88 × 40,863.34
  4. Step 4: Simplify right side
    107,438.59x = 6,585,448,438.33
  5. Step 5: Solve for x
    x = 6,585,448,438.33/107,438.59
  6. Step 6: Final answer
    x = 61,295.00

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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.