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Finding the Fourth Proportional to 134,642.90, 201,902.52 and 45,860.28

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Solution

The fourth proportional to 134,642.90, 201,902.52 and 45,860.28 is: 68,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,642.90 : 201,902.52 = 45,860.28 : x
  2. Step 2: Convert to fraction form
    134,642.90/201,902.52 = 45,860.28/x
  3. Step 3: Cross multiply
    134,642.90x = 201,902.52 × 45,860.28
  4. Step 4: Simplify right side
    134,642.90x = 9,259,306,099.91
  5. Step 5: Solve for x
    x = 9,259,306,099.91/134,642.90
  6. Step 6: Final answer
    x = 68,769.36

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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.