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Finding the Fourth Proportional to 308,767.76, 426,099.50 and 167,455.76

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Solution

The fourth proportional to 308,767.76, 426,099.50 and 167,455.76 is: 231,088.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,767.76 : 426,099.50 = 167,455.76 : x
  2. Step 2: Convert to fraction form
    308,767.76/426,099.50 = 167,455.76/x
  3. Step 3: Cross multiply
    308,767.76x = 426,099.50 × 167,455.76
  4. Step 4: Simplify right side
    308,767.76x = 71,352,815,608.12
  5. Step 5: Solve for x
    x = 71,352,815,608.12/308,767.76
  6. Step 6: Final answer
    x = 231,088.94

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1.5x scale

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.