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Finding the Fourth Proportional to 441,715.60, 662,746.20 and 161,261.20

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Solution

The fourth proportional to 441,715.60, 662,746.20 and 161,261.20 is: 241,954.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,715.60 : 662,746.20 = 161,261.20 : x
  2. Step 2: Convert to fraction form
    441,715.60/662,746.20 = 161,261.20/x
  3. Step 3: Cross multiply
    441,715.60x = 662,746.20 × 161,261.20
  4. Step 4: Simplify right side
    441,715.60x = 106,875,247,507.44
  5. Step 5: Solve for x
    x = 106,875,247,507.44/441,715.60
  6. Step 6: Final answer
    x = 241,954.89

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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.