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Finding the Fourth Proportional to 160,957.81, 241,673.72 and 90,019.43

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Solution

The fourth proportional to 160,957.81, 241,673.72 and 90,019.43 is: 135,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,957.81 : 241,673.72 = 90,019.43 : x
  2. Step 2: Convert to fraction form
    160,957.81/241,673.72 = 90,019.43/x
  3. Step 3: Cross multiply
    160,957.81x = 241,673.72 × 90,019.43
  4. Step 4: Simplify right side
    160,957.81x = 21,755,330,520.38
  5. Step 5: Solve for x
    x = 21,755,330,520.38/160,957.81
  6. Step 6: Final answer
    x = 135,161.70

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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.