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Finding the Fourth Proportional to 294,664.29, 406,639.56 and 167,340.81

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Solution

The fourth proportional to 294,664.29, 406,639.56 and 167,340.81 is: 230,931.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,664.29 : 406,639.56 = 167,340.81 : x
  2. Step 2: Convert to fraction form
    294,664.29/406,639.56 = 167,340.81/x
  3. Step 3: Cross multiply
    294,664.29x = 406,639.56 × 167,340.81
  4. Step 4: Simplify right side
    294,664.29x = 68,047,393,348.44
  5. Step 5: Solve for x
    x = 68,047,393,348.44/294,664.29
  6. Step 6: Final answer
    x = 230,931.93

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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.