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Finding the Fourth Proportional to 312,401.10, 468,601.65 and 125,546.70

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Solution

The fourth proportional to 312,401.10, 468,601.65 and 125,546.70 is: 188,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,401.10 : 468,601.65 = 125,546.70 : x
  2. Step 2: Convert to fraction form
    312,401.10/468,601.65 = 125,546.70/x
  3. Step 3: Cross multiply
    312,401.10x = 468,601.65 × 125,546.70
  4. Step 4: Simplify right side
    312,401.10x = 58,831,390,772.06
  5. Step 5: Solve for x
    x = 58,831,390,772.06/312,401.10
  6. Step 6: Final answer
    x = 188,320.05

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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.