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Finding the Fourth Proportional to 308,461.57, 425,659.29 and 170,632.27

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Solution

The fourth proportional to 308,461.57, 425,659.29 and 170,632.27 is: 235,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,461.57 : 425,659.29 = 170,632.27 : x
  2. Step 2: Convert to fraction form
    308,461.57/425,659.29 = 170,632.27/x
  3. Step 3: Cross multiply
    308,461.57x = 425,659.29 × 170,632.27
  4. Step 4: Simplify right side
    308,461.57x = 72,631,210,899.29
  5. Step 5: Solve for x
    x = 72,631,210,899.29/308,461.57
  6. Step 6: Final answer
    x = 235,462.75

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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.