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Finding the Fourth Proportional to 134,610.30, 201,915.45 and 115,911.45

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Solution

The fourth proportional to 134,610.30, 201,915.45 and 115,911.45 is: 173,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,610.30 : 201,915.45 = 115,911.45 : x
  2. Step 2: Convert to fraction form
    134,610.30/201,915.45 = 115,911.45/x
  3. Step 3: Cross multiply
    134,610.30x = 201,915.45 × 115,911.45
  4. Step 4: Simplify right side
    134,610.30x = 23,404,312,586.90
  5. Step 5: Solve for x
    x = 23,404,312,586.90/134,610.30
  6. Step 6: Final answer
    x = 173,867.18

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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.