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Finding the Fourth Proportional to 149,411.70, 223,469.55 and 133,730.10

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Solution

The fourth proportional to 149,411.70, 223,469.55 and 133,730.10 is: 200,015.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,411.70 : 223,469.55 = 133,730.10 : x
  2. Step 2: Convert to fraction form
    149,411.70/223,469.55 = 133,730.10/x
  3. Step 3: Cross multiply
    149,411.70x = 223,469.55 × 133,730.10
  4. Step 4: Simplify right side
    149,411.70x = 29,884,605,268.46
  5. Step 5: Solve for x
    x = 29,884,605,268.46/149,411.70
  6. Step 6: Final answer
    x = 200,015.16

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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.