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Finding the Fourth Proportional to 157,912.40, 236,609.40 and 134,584.40

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Solution

The fourth proportional to 157,912.40, 236,609.40 and 134,584.40 is: 201,655.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,912.40 : 236,609.40 = 134,584.40 : x
  2. Step 2: Convert to fraction form
    157,912.40/236,609.40 = 134,584.40/x
  3. Step 3: Cross multiply
    157,912.40x = 236,609.40 × 134,584.40
  4. Step 4: Simplify right side
    157,912.40x = 31,843,934,133.36
  5. Step 5: Solve for x
    x = 31,843,934,133.36/157,912.40
  6. Step 6: Final answer
    x = 201,655.69

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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.