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Finding the Fourth Proportional to 403,856.81, 605,857.27 and 134,001.12

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Solution

The fourth proportional to 403,856.81, 605,857.27 and 134,001.12 is: 201,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,856.81 : 605,857.27 = 134,001.12 : x
  2. Step 2: Convert to fraction form
    403,856.81/605,857.27 = 134,001.12/x
  3. Step 3: Cross multiply
    403,856.81x = 605,857.27 × 134,001.12
  4. Step 4: Simplify right side
    403,856.81x = 81,185,552,740.14
  5. Step 5: Solve for x
    x = 81,185,552,740.14/403,856.81
  6. Step 6: Final answer
    x = 201,025.59

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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.