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Finding the Fourth Proportional to 167,783.72, 251,763.02 and 68,017.64

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Solution

The fourth proportional to 167,783.72, 251,763.02 and 68,017.64 is: 102,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,783.72 : 251,763.02 = 68,017.64 : x
  2. Step 2: Convert to fraction form
    167,783.72/251,763.02 = 68,017.64/x
  3. Step 3: Cross multiply
    167,783.72x = 251,763.02 × 68,017.64
  4. Step 4: Simplify right side
    167,783.72x = 17,124,326,459.67
  5. Step 5: Solve for x
    x = 17,124,326,459.67/167,783.72
  6. Step 6: Final answer
    x = 102,061.91

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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.