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Finding the Fourth Proportional to 207,627.70, 311,247.15 and 162,624.10

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Solution

The fourth proportional to 207,627.70, 311,247.15 and 162,624.10 is: 243,783.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,627.70 : 311,247.15 = 162,624.10 : x
  2. Step 2: Convert to fraction form
    207,627.70/311,247.15 = 162,624.10/x
  3. Step 3: Cross multiply
    207,627.70x = 311,247.15 × 162,624.10
  4. Step 4: Simplify right side
    207,627.70x = 50,616,287,646.32
  5. Step 5: Solve for x
    x = 50,616,287,646.32/207,627.70
  6. Step 6: Final answer
    x = 243,783.89

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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.