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Finding the Fourth Proportional to 401,015.16, 601,522.74 and 134,775.68

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Solution

The fourth proportional to 401,015.16, 601,522.74 and 134,775.68 is: 202,163.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,015.16 : 601,522.74 = 134,775.68 : x
  2. Step 2: Convert to fraction form
    401,015.16/601,522.74 = 134,775.68/x
  3. Step 3: Cross multiply
    401,015.16x = 601,522.74 × 134,775.68
  4. Step 4: Simplify right side
    401,015.16x = 81,070,633,311.35
  5. Step 5: Solve for x
    x = 81,070,633,311.35/401,015.16
  6. Step 6: Final answer
    x = 202,163.51

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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.