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Finding the Fourth Proportional to 468,158.60, 645,875.06 and 271,891.67

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Solution

The fourth proportional to 468,158.60, 645,875.06 and 271,891.67 is: 375,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,158.60 : 645,875.06 = 271,891.67 : x
  2. Step 2: Convert to fraction form
    468,158.60/645,875.06 = 271,891.67/x
  3. Step 3: Cross multiply
    468,158.60x = 645,875.06 × 271,891.67
  4. Step 4: Simplify right side
    468,158.60x = 175,608,048,929.98
  5. Step 5: Solve for x
    x = 175,608,048,929.98/468,158.60
  6. Step 6: Final answer
    x = 375,103.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.