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Finding the Fourth Proportional to 167,931.46, 251,955.51 and 74,502.82

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Solution

The fourth proportional to 167,931.46, 251,955.51 and 74,502.82 is: 111,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,931.46 : 251,955.51 = 74,502.82 : x
  2. Step 2: Convert to fraction form
    167,931.46/251,955.51 = 74,502.82/x
  3. Step 3: Cross multiply
    167,931.46x = 251,955.51 × 74,502.82
  4. Step 4: Simplify right side
    167,931.46x = 18,771,396,009.54
  5. Step 5: Solve for x
    x = 18,771,396,009.54/167,931.46
  6. Step 6: Final answer
    x = 111,780.10

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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.