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Finding the Fourth Proportional to 541,860.72, 812,848.68 and 167,912.88

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Solution

The fourth proportional to 541,860.72, 812,848.68 and 167,912.88 is: 251,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,860.72 : 812,848.68 = 167,912.88 : x
  2. Step 2: Convert to fraction form
    541,860.72/812,848.68 = 167,912.88/x
  3. Step 3: Cross multiply
    541,860.72x = 812,848.68 × 167,912.88
  4. Step 4: Simplify right side
    541,860.72x = 136,487,762,863.00
  5. Step 5: Solve for x
    x = 136,487,762,863.00/541,860.72
  6. Step 6: Final answer
    x = 251,887.17

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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.