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Finding the Fourth Proportional to 167,810.64, 231,582.95 and 91,333.88

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Solution

The fourth proportional to 167,810.64, 231,582.95 and 91,333.88 is: 126,043.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,810.64 : 231,582.95 = 91,333.88 : x
  2. Step 2: Convert to fraction form
    167,810.64/231,582.95 = 91,333.88/x
  3. Step 3: Cross multiply
    167,810.64x = 231,582.95 × 91,333.88
  4. Step 4: Simplify right side
    167,810.64x = 21,151,369,365.35
  5. Step 5: Solve for x
    x = 21,151,369,365.35/167,810.64
  6. Step 6: Final answer
    x = 126,043.08

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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.