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Finding the Fourth Proportional to 229,769.58, 316,730.59 and 161,600.79

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Solution

The fourth proportional to 229,769.58, 316,730.59 and 161,600.79 is: 222,761.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,769.58 : 316,730.59 = 161,600.79 : x
  2. Step 2: Convert to fraction form
    229,769.58/316,730.59 = 161,600.79/x
  3. Step 3: Cross multiply
    229,769.58x = 316,730.59 × 161,600.79
  4. Step 4: Simplify right side
    229,769.58x = 51,183,913,561.17
  5. Step 5: Solve for x
    x = 51,183,913,561.17/229,769.58
  6. Step 6: Final answer
    x = 222,761.92

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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.