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Finding the Fourth Proportional to 291,507.21, 436,273.21 and 179,258.52

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Solution

The fourth proportional to 291,507.21, 436,273.21 and 179,258.52 is: 268,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,507.21 : 436,273.21 = 179,258.52 : x
  2. Step 2: Convert to fraction form
    291,507.21/436,273.21 = 179,258.52/x
  3. Step 3: Cross multiply
    291,507.21x = 436,273.21 × 179,258.52
  4. Step 4: Simplify right side
    291,507.21x = 78,205,689,043.96
  5. Step 5: Solve for x
    x = 78,205,689,043.96/291,507.21
  6. Step 6: Final answer
    x = 268,280.46

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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.